Did you get it right?
One modern hardware item appears in this older counter scene.

The Answer
The correct answer is: the modern plastic blister pack of hex bits.
Here is why
- The metal tools, oil can, screw bins, wood boxes, and brass fixtures fit the old hardware counter.
- The modern plastic blister pack of hex bits does not fit the era.
Why people miss it
It is a real hardware item, so it feels normal, but the packaging is too modern for the setting.
What answer did you get before checking?