Did you get it right?
This 1960s pharmacy counter shows old bottles, paper prescription envelopes, a hand scale, brown medicine bags, and an old cash register. Two small details do not fit the period.

The Answer
The correct answer is: The modern childproof cap safety ring and the peel-off blister-pack foil tab are the two mistakes..
Here is why
- The bottles, scale, paper bags, prescription envelopes, and register all fit the old pharmacy setting.
- Look around the old medicine bottles and the paper envelopes instead of only checking the cash register.
- The safety ring and blister-pack foil tab are newer packaging details hiding in the normal counter clutter.
Why people miss it
A pharmacy counter is full of tiny labels, caps, paper, and shiny bits, so modern packaging can blend in if you scan too quickly.
What answer did you get before checking?