Did you get it right?
Two modern correction and filing supplies do not fit this 1950s typing pool.

The Answer
The correct answer is: the plastic correction-tape roller and neon adhesive page-index tab.
Here is why
- A molded plastic correction-tape roller sits on the front desk.
- A neon self-adhesive page-index tab is attached to a case file.
Why people miss it
Both are small modern conveniences placed among authentic paper and typewriter supplies.
What answer did you get before checking?