https://youtu.be/zzMHhUEZUHY?si=mFibR0uyasrylUsp
The Front Line, a 1965 training film, produced by Reader's Digest for the Super Market Institute, a training film for supermarket checkers. The film shows 4 checkers, 3 of whom are former checker of the year winners, one a new checker just starting out. The movie does give a glimpse of supermarkets in the mid 1960s, the interior, product packaging, how customers dressed to go shopping, checker's uniforms, checkstands, procedures, pretty much the whole experience of shopping.
Apologies in advance if this is too off-topic...
