None of the card catalogs I have read give any indication of how to differentiate the various Pinnacle Mint coin issues from 1997 &1998. I have found that there is much confusion among collectors who are not sure if they have one of the parallel issues or not. In fact, it is actually quite easy to distinguish one set from another, but if you have only seen the Brass base coin and maybe the Nickel-Silver parallel, the differences in the rest of the sets would not be apparent. The Brass and Nickel-Silver coins both carry the same reverse (that's "back side" in coinspeak) design. The rest of the various coins that were issued: Gold Plate in '97 & '98, Artist Proofs in '98, and the Solid Silver & Gold coins, all carry an additional inscription on the reverse to identify them. These inscriptions can be seen in the pictures below. On the 1997 gold-plated coins, the word "RACING" is replaced by the words "GOLD PLATE". Likewise, the 1998 issues have an inscription added above the Pinnacle Mint logo which identifies them. In the tables below, words in parenthesis are for reference, but words in quotation marks actually appear on the coins themselves.