The Leica M3, code 10150 IGEMO, is the archetype of the 35 mm rangefinder camera and the embodiment of German mechanical precision, an icon of photojournalism that shaped modern photography. This specific model is distinguished by its chrome finish and the adoption of the Single Stroke (SS) film advance mechanism, introduced from serial number 919251 in 1958, which replaced the earlier and slower double stroke, optimizing shooting speed and handling for the action photographer. The M3 boasts the largest rangefinder ever integrated into a Leica (0.91x magnification), ideal for precise focusing with normal and telephoto lenses, and features clear and bright framelines for 50 mm, 90 mm, and 135 mm. Equipped with an extremely reliable mechanical cloth focal-plane shutter with speeds from 1/1000 s to 1 s plus B mode, the M3 Single Stroke retains a very high collectible and operational value, with the Leica M bayonet being the starting point of an unrivaled optical ecosystem.