Did you get it right?
This 1950s church basement bake sale with folding tables, homemade pies, paper doilies, coffee urn, volunteer women, and a chalkboard price list puzzle has 3 things that do not fit the period.

The Answer
The correct answer is: The QR-code donation placard, contactless card reader, and plastic bakery clamshell container are the three wrong items..
Here is why
- The main setting fits the period: 1950s church basement bake sale with folding tables, homemade pies, paper doilies, coffee urn, volunteer women, and a chalkboard price list.
- The first wrong item is the QR-code donation placard.
- The other wrong items are the contactless card reader and the plastic bakery clamshell container.
Why people miss it
The modern items feel ordinary today, so they can slip past you unless you compare them with the dated setting.
What answer did you get before checking?