Camp, Stephen A., Shooting the S&W Model 12Архивная копия от 20 ноября 2021 на Wayback Machine, retrieved 3 April 2011: The earlier Models 12-1, 12-2, and 12-3 used a 0.240" hammer, compared to the 0.265" wide hammer of the standard Model 10.
Camp, Stephen A., Shooting the S&W Model 12Архивная копия от 20 ноября 2021 на Wayback Machine, retrieved 3 April 2011: The earlier Models 12-1, 12-2, and 12-3 used a 0.240" hammer, compared to the 0.265" wide hammer of the standard Model 10.