What's The Oldest Coin You've Spent Or Put Back Into Circulation?

For fun 've dropped a few dozen cull wheat cents into circulation over the years--commons, nothing like a beat-up '14 D. Earliest was a horribly cleaned '16 Philly.

I recently spent a few dateless bison 5 cents and a few wheat cents. The cashier pocked the change. The oldest Wheat cent was a 1917.

I spend cull Indian cents regularly, some dating to the 1880s.

OK. I've accordingly edited my post so it looks like it's just another entry instead of an attempted new topic.

I've spent a few dateless buffaloes on my various trips to the USA, but the oldest coin I've spent was a grotty 1892 V nickel with an attempted piercing and environmental damage that I used when buying a transit ticket from a vending machine in Orlando, FL, in December 2021.

I have almost certainly spent older coins. As a kid I may well have spend English bun pennies (1861-94) if I replaced a poor specimen in my collection with a better one, and I spent an 1880s 10-rappen coin once in Switzerland - it was AG and harshly cleaned and I'd upgraded it in my collection, so it just went into my bag of loose Swiss change to spend on my next visit to the country. I think it went towards a coffee on a train ride.

I don't keep any pennies or nickels after 1960. And obviously any 1965 quarters and later also go back into the world.