Did you get it right?
This elegant train dining car contains two details from a much later era.

The Answer
The correct answer is: The mistakes are the takeaway coffee cup with a paper lid and the wireless earbuds case on the table..
Here is why
- Scan the tables for the plastic takeaway cup.
- Look for the small earbuds case.
- The remaining dining-car details fit the 1940s.
Why people miss it
Both items are small and neutral-colored, so they blend into the china and table settings.
What answer did you get before checking?