Roll film of Peter's camera. David Henderson Houston (born June 14, 1841; died May 6, 1906), originally from Cambria, Wisconsin, patented the first holders for flexible roll film. Houston moved to Hunter in Dakota Territory in 1880. He was issued an 1881 patent for a roll film holder which he licensed to George Eastman (it was used in Eastman's Kodak 1888 box camera). Houston sold the patent (and an 1886 revision) outright to Eastman for $5000 in 1889. Houston continued developing the camera, creating 21 patents for cameras or camera parts between 1881 and 1902. In 1912 his estate transferred the remainder
Kodak Retina Vollenda miniature folder, along with the Ranca and Pupille collapsible cameras were smaller than the Leica and Contax cameras, but could use 50mm f:3.5 Elmar and other similar Tessar formula lenses in Compur shutters to create a larger 30mm x 40mm image on 127 rollfilm. The advantage of 35mm would be the elimination of the paper-backer allowing more images per roll of film. All of the Kodak Retina cameras from the mid 1930s to the late 1950s were folding cameras with a short self-erecting bellows, lens board, and folding metal door/cover. These folding Kodak Retina cameras are listed below with