Krause Publication only produced the 1st and 2nd editions of Nahas & Supica's SCSW. SCSW3 was published by Gun Digest Books, but not sure if there is any ownership ties between the two companies.

I think the best single source on identification of S&W guns before 1945 is Neal & Jinks Smith & Wesson 1857 - 1945. This book goes into great detail on each and every early S&W through the end of WWII, but contains no pricing information.

Supica and Nahas Standard Catalog of Smith & Wesson, 3rd Edition is also a great resource, but there are a few errors to deal with, plus the last printing was 2006. This book does contain history and values of all S&Ws from the Lever Action Magazine Pistols up to guns being manufactured in 2006.

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Gary
SWCA 2515