Found in the T1001-T1025, this is an extremely rare factory tool room S&W Model 41 pistol in .22 LR. As noted in the "Standard Catalog of Smith & Wesson," these pistols will display "[s]light variation exist in manufacturing and tooling such as placement of serrations or checkering and in the size and shape of the slide lock lever" (page 346). A second batch of tool room guns (T1026-T1034) were chambered in .22 short and became the Model 41-1. Fitted with Patridge blade front and fully adjustable rear sights on the compensator equipped barrel. The frame is marked with the tool room serial number "T1010" on the left above the trigger and fitted with a set of wraparound checkered walnut target grips.