How many patent
dates are cast
 into bed?
  |
  | 0                           Yes                                 Yes
  |---> Is raised ring cast into -> Is bed painted blue? -------------> Type 20 
  |    bed as receiver for knob?       |
  |              |                     | No
  |              | No                  |                            No
  |              |                  Do toe and heel have a raised,----> Type 15 
  |       Is plane number             broad, flat rib casting?
  |        (i.e., No. 4)               |
  |       cast into bed?               | Yes
  |        |          |                |                            Yes
  |        | Yes      | No          Is "STANLEY" printed vertically --> Type 19 
  |        |          |              on lateral adjustment lever?
  |        |          |                |
  |        |          |                | No
  |        |          |                |                            Yes
  |        |          |             Does depth adjustment nut have ---> Type 18 
  |        |          |              a diagonal knurling on it?
  |        |          |                |
  |        |        Is lever           | No
  |        |        cap back           |
  |        |        recessed?        Does plane have wartime    Yes --> Type 17 
  |        |        |      |        features (handle and knob   No ---> Type 16 
  |        |        |      |         stained red or painted
  |    How many     | Yes  | No      black, depth adj. nut
  |   patent dates  |      |       made of steel or hard rubber,
  |    appear on    |      |          heavier bottom castings)
  |     lateral     |      |
  |    adjustment   |      ------>  Is depth adj. nut stamped  No ----> Type 1  
  |      lever?     |               "BAILEY'S PATENT"...?      Yes ---> Type 2  
  |        |        |
  |        |        ------------->  Is frog receiver a broad   No ----> Type 3  
  |        |                         rectangular area with     Yes ---> Type 4  
  |        |                        arched rear (toward tote)?
  |        |  0
  |        |--------------------->  Does "STANLEY" appear on   No ----> Type 4-5
  |        |                        lateral adj. lever?        Yes ---> Type 8-9
  |        |  1
  |        |----------------------------------------------------------> Type 8  
  |        |
  |        |  2
  |        |----------------------------------------------------------> Type 5  
  |        |
  |        |  3
  |        ---------------------->  Is depth adj. nut stamped  Yes ---> Type 6  
  |                                    "BAILEY'S PATENT"...    No ----> Type 7  
  | 1
  |------------------------------>  Is raised ring cast into   No ----> Type 13 
  |                                 bed as receiver for knob?  Yes ---> Type 14 
  | 2
  |------------------------------>  Is frog rib enlarged and   No ----> Type 9  
  |                                       arched type?         Yes ---> Type 10 
  | 3
  ------------------------------->  Is depth adj. nut large    No ----> Type 11 
                                       (1.25" diameter)?       Yes ---> Type 12 


 
Type & Period:
Type 1 1867-1869 Made in Boston, MA. 
Type 2 1869-1872  
Type 3 1872-1873 
Type 4 1874-1884 
Type 5 1885-1888 Lateral adjustment lever appears. 
Type 6 1888-1892 
Type 7 1893-1899 
Type 8 1899-1902 
Type 9 1902-1907 “Bailey” and patent dates appear on bed. 
Type 10 1907-1909 Frog adjustment screw appears. 
Type 11 1910-1918 
Type 12 1919-1924 First of “Sweetheart” types. 
Type 13 1925-1928 “Stanley” appears on lever cap.
Type 14 1929-1930 “Made in USA” appears cast into bed.
Type 15 1931-1932 Last of “Sweetheart” types.
Type 16 1933-1941 Kidney shaped lever cap hole.
Type 17 1942-1945 War production. Often without frog adjust.
Type 18 1946-1947
Type 19 1948-1961
Type 20 1962-1967 Blue paint appears.


Comments:
"Sweetheart" types are #12 thru 15, Made from 1919-1932.
Generally, the most desirable user types are considered to be #10 thru 15.

Note: Original version by Jay Sutherland, after Roger K. Smith and Patrick Leach
Amended version May 2001 by Jim DeLaney, using additional information from John Walter’s book “Antique & Collectible Stanley Tools -
Guide to Identity & Value.”

Made to .Txt file By rarebear