Very cool. Change finds are tough in the debit card age.
I have a small jar of stuff I've removed from circulation over the past 15 years or so. 1930 Merc dime, maybe 10 silver quarters, and an armada of wheaties. Plus since I'm near Canada, lots of their change as well. Banks do a better job these days though, don't see them that often.
Spent a couple years working at a full service gas station when I was in high school back in the mid 80's. The bills and coins people used to pay with occasionally were a testament to hard times for some.