I just got through searching a box of pennies. I found 3 proofs. Not bad since the last time I found one was several years ago.
These are always hard to find, especially already stapled in flips and identified. Seriously, good finds!
This was actually a pretty good box. Lots of Wheats (1 even still had quite a bit of luster), and a bunch of (I'm guessing) BUs from the 60s and 70s. I found 10 1969-D quarters that were in excellent condition almost like they were minted yesterday.