Donald Qualls
Subscriber
Maybe that's why 35mm made such a push from the late 1950s until APS (also with no backing) came out? Of course, there were still 126 and 110 with backing inside the cartridges, but they were (mostly) consumer films (yes, I remember having a roll of Tri-X in 126, once), and by the mid-1960s perhaps a little less likely to get three Christmases on a single roll...