I've only researched U.S. coins so far. My collection is primarily American with a small sack of foreign change. I know little to nothing about foreign change and I am not trying to learn much about it for the meantime. I don't have a limit on size of my collection at the moment until space becomes a premium. Right now I am collecting coins based off of google information.
I sort pennies based on before 1982, wheat pennies, steel wheat pennies, and specific year dates for minting defects.
Nickels I have been keeping if they are before the 60s, and i have a couple of buffalo nickels.
All dimes, quarter, and half dollars I keep before 1965 for silver content. I have some bicentennial quarters and half dollars as well that I preserve. And any old coin I like to hold onto simply for its age. I have a 1922 Peace dollar that is pretty neat although it doesn't have a great value.
Simply put, I have been inspired by my dad, since he started collecting coins as a kid. My grandfather would give him some money from each pay check to get a coin roll from the bank and develop a collection from. His is very elaborate and organized for old coins
This post was edited on 12/26 at 2:33 pm