Leica IIIg First One (SN: 825001)

The Leica IIIg, serial number 825001, represents the inaugural production model of the final iteration in Leica's prestigious III series, which had been in continuous production since the original Leica I in 1925. Introduced in 1957, the IIIg represented the culmination of decades of refinement in Leica's rangefinder design. This particular model distinguished itself from earlier III series cameras through several key improvements, most notably the incorporation of a large, bright viewfinder with automatic parallax correction and brightlines for 35mm, 50mm, 90mm, and 135mm lenses. The rangefinder was also upgraded with a brighter, more effective image. As the first production example of this significant model, SN 825001 holds special interest as a transitional piece between Leica's legacy screw-mount rangefinder system and their eventual M-mount series that would begin production shortly after.

The IIIg maintained Leica's tradition of excellence in build quality while incorporating modern conveniences that made it more user-friendly than its predecessors. With its coupled rangefinder for precise focusing, cloth focal-plane shutter with speeds from 1 to 1/500 second, and compatibility with Leica's extensive screw-mount lens system, the IIIg was a versatile tool for professional photographers and serious amateurs alike. Its production run was relatively short (1957-1960), as it was quickly succeeded by the revolutionary M3 with its bayonet lens mount, making well-preserved examples like this first production unit increasingly rare and significant artifacts in the history of 35mm photography.