Haven't been doing em that long myself but happened to stumble across a '63 and two Kansas error coins "rust" mainly I did them to complete the states but now I do it for the '65 and '71 doubled dies. What's your best find for quarters? Also I've been doing Nickels a while found 3 buffalos and a multitude of pre-1960s...a few proofs and like 6 war nickels. I love nickels I really do almost as much as cents. What's your best nickel from either CRH or anywhere else ?!
For Quarters, it was a 1939 philly like 30 years ago... recent best find a 1959-D... As for nickels, a 1939-D in AU (left coin in my avatar), 1918-D Buffalo in VG, and an 1887 V Nickel that might not make Poor-1...