Did you get it right?
This old pharmacy counter shows glass bottles, paper envelopes, a receipt pad, a prescription ledger, and soda-counter stools. Two small details do not fit the period.

The Answer
The correct answer is: The two mistakes are the modern child-resistant cap liner and the peel-off prescription-sticker backing..
Here is why
- The bottles, stools, ledger, and paper envelopes all fit the old pharmacy setting.
- Look near the medicine bottles and the papers on the counter.
- The cap liner and sticker backing are newer packaging details, not old pharmacy-counter materials.
Why people miss it
A pharmacy counter has many small papers and labels, so a modern packaging clue can look like normal clutter at first.
What answer did you get before checking?