127 Film Format, according to wikipedia – “The format was introduced by Kodak in 1912, along with the “Vest Pocket Kodak” folding camera, as a compact alternative to larger portable cameras using 120. The folding “127s” were in fact smaller than most 35 mm cameras today. The 127 format made a comeback during the 1950s as the format of choice for small inexpensive cameras such as the Brownie and Satellite, and continued in wide use until surpassed by the 126 film and 110 film “Instamatic” cartridges”
The Film Photography Project
A Resource for Film Shooters Worldwide