I found a video on Youtube about the birth of the UPC code. Notice the IBM 3663 cash registers. I first saw these registers in use at Wegmans in the mid to late 1970s.
Enjoy your last minute shopping! Here we have an NCR 2152 cash register in an unknown location. I remember several chains running with these registers in the 80s and 90s, including Sears (after the Singer-Friden registers), BonTon, and Caldor.
Going through old photos I found this picture of a Data Terminal Systems Series 400 cash register in Canada. I believe there’s an old mall or shopping center that’s preserved in its legacy state, complete with three checkouts and these registers.
Anyone remember the location?