The Graflex Speed Graphic C-6 is a military-issue version of the American large-format press camera, supplied to armed forces during the mid-20th century. It is a sheet-film camera with a focal-plane shutter, configured for field and reconnaissance use rather than civilian press work.

With only two recorded UK auction hammer results, both at £300 (2008 and 2016), the price evidence is thin and dated, and today's value should be treated as indicative rather than settled. Condition, completeness of military markings, and presence of the original lens and back have a strong bearing on what a C-6 sells for at saleroom level.