Dating your Singer Sewing Machine - 2 letter prefix - American Dating your Singer Sewing Machine - 2 letter prefix - American

Many of these serial numbers have been reported by individual Featherweight Fanatics.
Unless indicated by an "*" they are not the actual high or low serial numbers allotted by Singer.

Date Low in allotment High in allotment Model # allotted Qty on database Notes
1924 AA
3/9/24 127 or 128
8/19/24 AA001716 AA008885 99
9/23/24 AA039905 24
10/22/24 AA131033
10/22/24 AA134880 99
12/16/24 AA163145
12/16/24 AA175416 AA181449 66
1924 AA188650
1925 AA188651
5/19/25 AA410897 66
5/19/25 AA447821 99
5/19/25 127
5/19/25 AA449792 99
5/26/25 AA489646 128
8/4/25 AA548459 99
8/11/25 AA585195 66
9/22/25 128
10/22/25 AA701813
10/22/25 AA704046 AA706696 99
8/11/25 AA582677 66
12/8/25 127
1925 AA817510
1926 AA817511
1/26/26 AA876832 66
1926 AA999999
1926 AB000001
4/13/26 101
4/13/26 AB009554 66
7/8/26 AB113401 AB145434 66
7/8/26 AB152805 99
7/8/26 AB165753 127
10/5/26 AB260334 AB262333 99
10/22/26 128
10/28/26 127
12/21/26 AB414255
1926 AB424850
1927 AB424851
1/18/27 AB460833
1/18/27 AB478921 127
1/18/27 66
2/5/27 AB493439 128
3/23/27 101
3/23/27 AB556191 AB557081 99
3/23/27 AB564168
4/19/27 AB594305 66
4/27/27 AB650729 128
6/15/27 AB667958 AB672971 99
10/11/27 AB855575 127
10/25/27 AB861890 66
1927 AB970425
1928 AB970426
1928 AB999999
1928 AC000001
2/1/28 AC010786 AC061234 99
4/10/28 AC087995 AC093406 99
5/22/28 66
6/26/28 AC209956 AC213100 99
7/25/28 AC250471
9/20/28 127
9/21/28 AC319376 99
9/25/28 AC324593 15
11/28/28 AC421323 AC424089 99
1928 AC455380
1929 AC455381
1/9/29 AC463221 AC488795 66
5/22/29 AC671804 AC672419 99
7/26/29 AC731823 128
8/2/29 AC746195 AC764695 66
8/21/29 99
11/9/29 AC855791
1929 AC907690
1930 AC907691
1/28/30 AC982775
1/28/30 AC999999
1/28/30 AD000001 66
4/1/30 AD053263 66
4/1/30 AD081470 112-4 500
4/15/30 101
AD093595> 99
9/23/30 AD216771 AD220868 99
AD290991 95-10
12/12/30 AD294501 101 (casting marked 12/30/30)
12/2/30 AD297599 101
1930 AD305595
1931 AD305596
1/29/31 AD328405 66
2/28/31 AD343299 24
AD343621 66
4/2/31 99
4/15/31 AD349142 AD351586 101
4/15/31 AD351586 101
9/1/31 AD404315 96
9/24/31 AD412790 99
11/24/31 AD423858 66
1931 AD442270
1932 AD442271
11/9/32 AD485358 15
1932 AD489945
1933 AD489946
2/27/33 15
2/27/33 AD500392
3/22/33 AD502956 107
7/5/33 AD510954 AD512742 15
9/5/33 AD514975 15
9/26/33 AD541001 AD541330 15
9/29/33 AD541520 AD541542 105
10/3/33 AD541548 AD551534 221 20 Original price around $84. One of these was originally purchased 9/4/34, another was purchased 12/6/35
10/17/33 AD551547 AD551596 81
10/17/33 AD555501 96
1933 AD573295
1934 AD573296
2/27/34 AD595768 99-13
4/10/34 99
6/12/34 15
8/17/34 AD685617 AD709486 15
8/17/34 AD714996 175
9/10/34 AD720797 AD730704 221 21 One of these has a Chicago World's Fair medallion.
9/12/34 AD730804 AD731057 81
9/25/34 AD739983 99
10/4/34 AD761442 AD780285 15
11/13/34 AD781796 17
11/27/34 AD781921 AD791739 221 22
1934 AD826955
1935 AD826956
3/18/35 AD880733 AD889968 221 16
6/4/35 AD909026 15
6/24/35 AD937738 AD946595 221-1 23
7/10/35 AD950275 99
7/30/35 AD953814 31
9/5/35 AD224749 15
9/17/35 AD994219 AD996955* 96
9/23/35 AD996956* AD999999* 221 3044 9
9/23/35 AE000001* AE006956 221 10
9/26/35 AE007145 55
10/8/35 AE007568 AE008542 99
10/8/35 AE010848
12/30/35 AE054399 AE064320 221 17
1935 AE064365
1936 AE064366
1/3/36 99
3/25/36 AE076812 AE086063 221 17 One of these has a Texas Centennial medallion. Foot pedal changed to bakelite somewhere between late 1935/1936.
4/21/36 AE123607 96
6/17/36 AE179541 99
6/17/36 AE199076 201
7/13/36 AE207677 AE222356 221 18 One of these has a Texas Centennial Expo medallion
9/10/36 AE240396 AE258254 15(221) 2
10/10/36 AE230457 15
11/5/36 AE294381 AE309309 221 19
11/11/36 AE317009
12/29/36 AE341724 15
1936 AE365140
1937 AE365141
2/9/37 AE385094 AE385348 128
2/24/37 AE393204 AE399981 99
3/15/37 AE408257 AE422865 221 24
3/17/37 AE436650 201
3/23/37 AE440749 AE461283 15
3/26/37 99
5/12/37 AE497954 96
5/26/37 AE514628 AE521322 128
5/26/37 AE529375 201
6/11/37 AE537161 AE555917 221 23 Beginning of numbered tension knob
6/16/37 AE565793 AE588852 15
9/1/37 AE634154 15
9/1/37 AE667582 99
AE674659 178-1
9/22/37 AE682643 AE684378 201
10/13/37 AE692018 AE758243 128
12/8/37 AE770934 AE790521 221 18
1937 AE791090
1938 AE791091
1/3/38 AE804116 201
4/13/38 AE948011 15
5/24/38 AE975024 AE993490 221 31
6/6/38 AF000129 201
7/12/38 AF007004 66
7/18/48 AF013802 66
8/16/38 AF054991* AF055490* 18 500
8/16/38 AF055491* AF055990* 147 500
8/25/38 AF055991* AF056005* 10 15
9/14/38 AF056006* AF059005* 31 3000
9/14/38 AF059006* AF059305* 69 300
9/14/38 AF059306* AF059605* 146 300
9/25/38 AF059606* AF059905* 178 300
9/25/38 AF059906* AF069905* 201 10000
10/3/38 AF069906* AF070405* 24 500
10/3/38 AF070406* AF070705* 52 300
10/10/38 AF070706* AF090705* 221 20000 23 Four of these have a Golden Gate Expo medallion
11/1/38 AF090706* AF091005* 68 300
11/2/38 AF091006* AF091305* 105 300
11/7/38 AF091306* AF091605* 32 300
11/10/38 AF091606* AF091805* 85 200
11/21/38 AF091806* AF126805* 15 35000
11/21/38 AF126806* AF136805* 66 10000
11/21/38 AF136806* AF137105* 92 300
11/30/38 AF137106* AF137405* 176 300
12/5/38 AF137406* AF137705* 19 300
12/5/38 AF137706* AF140705* 31 3000
12/5/38 AF140706* AF141005* 231 300
12/7/38 AF141006* AF141105* 159 100
12/20/38 AF141106* AF142105* 96 1000
12/20/38 AF142106* AF152105* 201 10000
1/3/39 AF152106* AF152405* 147 300
1/10/39 AF152406* AF154405* 55 2000
1/10/39 AF154406* AF154905* 78 500
1/10/39 AF154906* AF157905* 99 3000
1/10/39 AF157906* AF160905* 127 3000
1/30/39 AF160906* AF161405* 114 500
1/31/39 AF161406* AF161605* 62 200
2/13/39 AF161606* AF161805* 106 200
2/15/39 AF161806* AF181805* 221 20000 36 One of these has a satin finish, two of these have a Golden Gate medallion.
2/21/39 AF181806* AF182105* 16 300
3/7/39 AF182106* AF182405* 69 300
3/8/39 AF182406* 18
3/28/39 AF185679
4/12/39 AF211080 AF221964 15
5/23/39 AF240436 128
7/11/39 AF244672 AF263782 221 31
7/12/39 AF290804 AF291353 99
8/22/39 AF311682 66
10/20/39 AF353623 30-21
12/5/39 AF372202 AF391406 221 20000 20 Three of these have a wrinkle finish, one has a 1940 Golden Gate medallion.
1924 AF397655
1925 AF397656
1/3/40 AF399840 201
1/24/40 AF412935 AF425009 15(221) 3
2/27/40 AF445020 201
3/18/40 66
3/27/40 AF463151 66
4/10/40 AF477187 AF493281 221 26
5/15/40 AF493281 AF496659 221 11
4/16/40 AF518017 15
6/19/40 AF536077 66-14
5/15/40 AF541842 AF544666 221(201)
6/19/40 AF546100 AF556564 221(66-14) 7
6/19/40 AF560253 66
7/24/40 AF566908 AF569356 128
7/24/40 AF571380* 148
7/24/40 AF571381* AF571680* 242 300
8/15/40 AF571681* AF571880* 109 200
8/15/40 AF571881* AF596880* 221 25000 45 Stitch length indicator changed style during this run. These sold new for around $105. Three of these have a wrinkle finish.
8/21/40 AF596781* AF621880* 15 25000
8/28/40 AF621781* AF631880* 66-14 10000
8/29/40 AF631781* AF632380* 69 500
9/5/40 AF632381* AF632680* 17 500
9/5/40 AF632681* AF647680* 201 15000
9/17/40 AF647681* AF647705* 103 Exp. 25
9/26/40 AF647706* AF648205* 175 500
9/26/40 AF648206* AF648405* 119 200
10/2/40 AF648406* AF653405* 127 5000
10/11/40 AF653406* AF653605* 7 200
10/11/40 AF653606* AF653905* 42 300
10/11/40 AF653906* AF654205* 231 300
10/16/40 AF654206* AF669205* 66-14 15000
10/31/40 AF669206* AF672205* 31 3000
10/31/40 AF672206* AF672705* 78 500
10/31/40 AF672706* AF672999* 114 294
11/6/40 AF673000* AF678000* 241-1 New style 5001
11/6/40 AF678001* AF683000* 241-1 New style 5000
11/12/40 AF683001* AF683300* 81 300
11/12/40 AF683301* AF683350* 97 50
11/12/40 AF683351* AF688350* 128 5000
11/27/40 AF688351* AF688650* 68 300
11/27/40 AF688651* AF689150* 69 500
12/5/40 AF689151* AF689650* 147 500
12/5/40 AF689651* AF699650* 201 10000
12/5/40 AF699650* AF700150* 242 500
12/18/40 AF700151* AF720150* 15 20000
12/18/40 AF720451* AF720450* 16 300
12/18/40 AF720451* AF720750* 17 300
12/18/40 AF720751* AF735750* 66 15000
12/31/40 AF735751* AF740750* 127 5000
1/7/41 AF740751* AF760750* 221 20000 28
1/16/41 AF760751* 17
2/12/41 AF772993 128
2/12/41 AF793830 201
2/12/41 AF779362 66
2/12/41 AF780880 128
2/12/41 AF791857 201
4/1/41 AF845446 66
4/1/41 AF864499 AF883842 221 28
4/15/41 AF884296 96
4/15/41 AF886558 AF900081 201
5/14/41 AF932556 AF940606 15(221) 11
6/25/41 AF986323 AF997492 201
7/1/41 AF998751 AF999999* 221 0
7/1/41 AG000001* AG018214 221 34 Seven of these are blackside
7/9/41 AG018393 AG021302 99
7/15/41 AG026745 AG048604 15
9/9/41 AG105529 AG108145 99
9/17/41 AG131302 AG165779 128
9/30/41 AG194949 AG200568 66
10/23/41 AG224680 AG224749 201
11/11/41 AG233112 AG241245 99
11/11/41 AG249941 128
12/7/41 Beginning of U.S. involvement in WWII
12/16/41 AG263202 AG281537 66
1941 AG328075
1942 AG328076
1/21/42 99
2/11/42 AG353020 128
4/1/42 AG394211 31
4/1/42 AG401315 AG403082 99
10/7/42 AG425938 31
1942 AG428235
1943 AG428236
6/15/43 AG443779 31
1943 AG447870
1944 AG447871
12/5/44 AG475029 242
1944 AG475720
1945 AG475721
1/18/45 AG482940 241
7/18/45 AG492785 AG500051 241
8/29/45 AG503256 15
8/29/45 AG514859 AG519012 66
9/2/45 Official end of U.S. involvement in WWII
9/4/45 AG522070 147
9/19/45 AG526281 AG545750 221 29
1945 AG565750
1946 AG565751
12/20/46 AG591018 241
2/18/46 AG604107 AG622052 221-1 23
3/12/46 AG626930 AG629978 66
4/18/46 AG677123 201
6/4/46 AG689391* AG709390* 221-1 18
6/6/46 AG718097 AG732019 15
6/28/46 AG741629 201
7/31/46 AG795094 AG799395 15
9/16/46 AG804867 AG822878 221 24
10/15/46 AG824970 AG825278 128
10/25/46 AG853381 AG857760 99(221) 5
11/21/46 AG858878 17(221)
11/21/46 AG865026 AG869284 128
11/22/46 AG869669 AG888205 221 28
12/20/46 AG921553 15
12/20/46 AG932679 AG938671 201
1946 AG955445
1947 AG955446
2/6/47 AG968085 AG969172 66
2/19/47 AG971467 AG988311 221 18
4/4/47 AG998473 AG999999* 15
4/4/47 AH000001* AH019730 15
4/4/47 AH045202 201-2
4/22/47 AH050371* AH070370* 221-1 20000 21
6/26/47 AH111971* AH131970* 221-1 20000 20
7/10/47 AH133092 15-91
7/10/47 AH168792 128
7/10/47 AH187372 AH181252 201
8/19/47 AH193771* AH223770* 221-1 30000 39 Faceplate changed to striat around this time.
8/25/47 AH223771* 24
9/25/47 AH276462 15
10/28/47 AH316642 AH345866 221-1 28
12/19/47 201
1947 AH378570
1948 AH378571
1/5/48 AH387163 15
1/22/48 AH414194 AH443159 221-1 26 One of these sold new for $145
1/22/48 128
2/2/48 AH449678 AH451314 128
2/10/48 AH455533 66
4/1/48 AH524184 AH527184 15
4/1/48 AH537490 15
4/20/48 AH550968 AH580510 221-1 37 Motor changed from 3-110 to 3-120 around this time. One of these was purchased new for $125. One has warranty slip dated 3/48
4/29/48 AH582046 AH593549 66
6/18/48 AH641016 AH670225 221-1 37
6/21/48 AH684301 AH702634 15
AH709625 241-11
8/26/48 AH743585 AH752815 66
9/20/48 AH769024 AH787257 15
10/1/48 AH799684 AH827702 221-1 35
10/7/48 AH830194 AH835238 201
11/29/48 AH889952 AH894297 15
11/29/48 AH934921* AH935920* 231 1000
11/29/48 AH935921* AH950920* 241 15000
12/2/48 AH950921* AH951920* 24 1000
12/6/48 AH951921* AH966920* 201 15000
12/6/48 AH966921* AH971920* 245 5000
12/6/48 AH971921* AH973920* 246 2000
12/9/48 AH973921* AH999999* 221 26079 21 One of these was purchased new for $148.
12/9/48 AJ000001* AJ013920* 221 13920 15
12/10/48 AJ013921* AJ014220* 157 300
12/28/48 AJ014221* AJ014720* 152 500
1/3/49 AJ014721* AJ015220* 16 500
1/3/49 AJ015221* AJ015720* 68 500
1/3/49 AJ015721* AJ018720* 95 3000
1/3/49 AJ018721* AJ019220* 114 500
1/3/49 AJ019221* AJ019720* 147 500
1/17/49 AJ019721* AJ020220* 159 500
1/27/49 AJ020221* AJ021220* 242 1000
2/8/49 AJ021221* AJ021720* 18 500
2/8/49 AJ021721* AJ022220* 81 500
2/8/49 AJ022221* AJ022720* 175 500
2/18/49 AJ022721* AJ023220* 17 500
2/18/49 AJ023221* AJ023720* 24 500
3/1/49 AJ023721* AJ026720* 31 3000
3/1/49 AJ026721* AJ027220* 44 500
3/3/49 AJ027221* AJ027720* 69 500
3/3/49 AJ027721* AJ028220* 114 500
3/3/49 AJ028221* AJ043220* 241 15000
3/9/49 AJ043221* AJ093220* 15 50000
3/9/49 AJ093221* AJ093720* 68 500
3/9/49 AJ093721* AJ103720* 128 10000
3/15/49 AJ103721* AJ143720* 221 40000 47 One of these was purchased new for $145.
3/15/49 AJ143721* AJ168720* 66 25000
3/15/49 AJ168721* AJ183720* 201 15000
3/16/49 AJ183721* AJ184220* 24 500
3/21/49 AJ185267 AJ186895 246
3/27/49 AJ188827 52
11/18/49 AJ189901 AJ227978 221-1 39
AJ235431 66-16 Purchased new on 7/15/50 for $235
12/19/49 AJ294241 AJ331722 15
1949 AJ333370
1950 AJ333371
1/9/50 AJ333926 201
1/23/50 AJ349359 AJ388008 221-1 36
1/24/50 AJ390466 AJ401283 128 15000
3/2/50 AJ413633 66
3/16/50 AJ443937 201
3/27/50 AJ457101 AJ481838 15
3/27/50 AJ510509 AJ521788 66
3/31/50 AJ552938 AJ598653 221-1 38 One of these was purchased new for $140. Case changed from lift out tray to shelf on left around this time.
5/1/50 AJ606252 AJ613165 128 GODZILLA!
6/1/50 AJ616198 AJ654849 221-1 59
6/13/50 AJ691735 66
6/13/50 AJ716313 201
7/11/50 AJ732494 15
7/28/50 AJ829459 66
8/8/50 FW?
8/22/50 AJ781738 AJ820688 221-1 40000 44
8/28/50 AJ841298 66
10/4/50 AJ863056 AJ868907 128
10/26/50 AJ889844 AJ937261 221-1 57
11/6/50 AJ950862 AJ962460 201
11/10/50 AJ989465 AJ997729 15
11/10/50 AK007474 15 17220
11/10/50 AK051037 66
1950 AK057820
1951 AK057821
1/29/51 AK071321* AK121320* 221-1 50000 47 One of these on the database was originally sold in Brazil. One was purchased new for $150.
2/8/51 AK131982 66
2/2/51 128
4/26/51 AK332979 66-18
5/10/51 AK390162 AK439250 221 60
7/16/51 15
AK449655 66
7/26/51 128
7/26/51 AK482757 15-91
7/26/51 AK536034 AK546991 201
10/16/51 AK449665 66
10/31/51 AK576793 AK626682 221 63
11/19/51 AK649407 15
11/19/51 AK696530 AK701736 201
1951 AK705475
1952 AK705476
2/20/52 AK746454 AK795313 221 51
2/29/52 AK798749 251
3/3/52 AK802134 AK831973 15(221)
4/3/52 AK859798 AK862256 128
4/16/52 AK872850 66
5/3/52 128
7/23/52 128
AK904103 201-2
8/11/52 AK984876* AK999999* 221 15124 29 One of these was purchased new for $154.
8/11/52 AL000001* AL034875* 221 34875 43 Around this time the seam allowance gauge was added.
9/23/52 AL073071 AL111275 15
10/6/52 128
AL138197 251-2
12/12/52 AL158501* AL208500* 221 50000 49
12/18/52 AL253286 15 50000 49
12/18/52 AL286639 AL293530 201
1952 AL300600
1953 AL300601
4/8/53 AL321883 15-91
4/8/53 AL371791 66(221)
4/8/53 AL374806 AL378689 201(221)
5/4/53 AL389869 AL437088 221 52 Riveted model number (221-) began to be added below medallion.
7/10/53 AL482380 15
7/15/53 15
9/10/53 AL498373 15
10/13/53 AL524947 281(221)
10/14/53 AL525043 AL574498 221 35 Gold leaf changed to plainer style around this time.
11/20/53 AL654751 AL655218 201
1953 AL665740
1954 AL665741
4/2/54 AL686895 66
4/22/54 AL689240 AL737129 221 38
5/11/54 AL761519 AL776681 15(221)
10/15/54 AL841017 AL846126 15(221)
11/12/54 AL888849 66
1954 AL896890
1955 AL896891
1/17/55 AL900891* AL950890* 221 50000 62 One of these was purchased new for $169.
2/14/55 AL954277 AL963642 66
2/24/55 AL979283 AL999999* 15
2/24/55 AM000001* AM009424 15
4/18/55 AM045168 AM053717 99
4/26/55 99
66-16
4/25/55 AM072628 66
6/10/55 AM091606 15
6/6/55 AM106701 AM135871 15
6/10/55 AM137761* AM187760* 221 50000 73
9/9/55 AM202574 201
10/21/55 AM226119 AM229605 15
10/21/55 AM266987 99
1955 AM296985
1956 A296986
AM326032 66
2/13/56 AM338094 201
AM345232 201-2
2/27/56 AM361808 AM411024 221 62
3/8/56 15-91
4/22/56 AM497335 99
9/6/56 AM526710 99
11/21/56 AM564789 201
12/10/56 AM605602 AM621972 15
1956 AM629585
1957 AM629586
1/21/57 201
1/23/57 AM651936 246
1/29/57 AM652656 AM701824 221 53
2/14/57 AM702794 31
2/14/57 AM704900
9/27/57 AM773211 AM821105* 221 20
1957 AM837799
1958 AM937800
2/11/58 AM884684 404
5/2/58 AM897041 404
1958 AM953999
1959 AM954000
4/8/59 AM983552 404
4/8/59 AN000001 AN027584 404
12/14/59 AN092809 404
1959 AN175979
1960 AN175980
1/12/60 AN186335 251
1960 AN333569
1961 AN333570
1961 AN362988
1962 AN362989
6/20/62 AN423078 604
1962 AN465661
1963 AN465662
1963 AN661994
1964 AN661995
1964 AN999999
1964 AP000001
1964 AP300028
1965 AP300029
1965 AP420616
1966 AP420617
4/66 AP743266 626
1966 AP999999
1966 AR000001
1966 AR102501
1967 AR102502
1967 AR579025
1968 AR579026
1968 AR999999
1968 AS000001
AS325270 648
1968 AS001500
1969 AS000151
1969 AS474650
1970 AS747651
1970 AS999999
1971 AT000001
1971 AT007714 717
1971 AT032500