How many quarters did you have to put into the machine before you were able to fish those out with the crane? Sure hope you keep them in their old holders, a real slice at that!
Even though it is a little bit old thread, the oldest red copper coin graded by a TPG company is the following: Venice, 6 Bagattini, issued under the decree of April 20, 1619. It is currently in an auction: https://leunumismatik.com/en/lot/70/3641
Apparently someone in the US noticed this discussion and published the following article: https://coinagerings.org/the-hunt-for-the-oldest-slabbed-red-copper-coin-market-analysis/ However, there seems to be an error in the article. The coin in the upcoming auction is actually a Venice 6 Bagattini (1619), not a 1619 Dutch duit as stated. Still, the analysis itself is quite interesting