The Gray Leica IIIc "K": A Historical Treasure, without military markings
Among iconic cameras in history, the gray Leica IIIc "K" holds a special place. Produced during World War II, this camera is distinguished by its rarity, unique design, and lack of military markings, making it a prized piece for collectors and photography enthusiasts.
1. History of the Leica IIIc “K”
The Leica IIIc was introduced in 1940 by Leitz Wetzlar in Germany. During World War II, due to a chrome shortage, some models were finished with gray paint. Among these, the "K" model is distinguished by the addition of special ball bearings in the shutter, designed to improve low-temperature performance—a particularly useful feature for the Luftwaffe, the German air force. These cameras were marked with a "K" on the top plate and on the shutter curtain.

2. Technical Specifications
- Finish : Distinctive grey paint, different from the usual chrome, with a grey vulcanite coating.
- Markings : Absence of military engravings, unlike some similar models which bore inscriptions such as "WH" (Wehrmacht-Heer) or "Luftwaffeneigentum".
- Shutter : Presence of special ball bearings to improve low temperature performance, identified by a "K" on the shutter curtain.
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Serial numbers : Grey models without military markings are generally in the serial number range 387501 to 392000:
- 387514 July 1942
- 388301 September 1942
- 388976K December 1942
- 390480K July 1945
- 391010K July 1945

3. Use during World War II
These gray Leica IIIc cameras, without military markings, were delivered to various entities considered essential to the German military-industrial complex, including research institutes, embassies, medical clinics, and schools. After Germany's surrender in May 1945, a portion of Leica production was allocated to the Allied occupation forces, particularly the American army.
4. Variants of the Leica IIIc Gray
- Leica IIIc without markings : These cameras have a grey finish without any military markings, intended for civilian or scientific use.
- Leica IIIc "K" : Identified by a "K" on the top plate and shutter curtain, these models were primarily intended for the Luftwaffe.
- Leica IIIc "K" Luftwaffen : Some devices bore specific markings such as "Luftwaffeneigentum", indicating their belonging to the German Air Force.

The gray Leica IIIc "K" without military markings is a fascinating testament to the history of photography and World War II. Its rarity, unique technical features, and lack of markings make it a sought-after piece for discerning collectors. Owning such a camera means possessing a tangible piece of history.