Anacs coin grading company charges a bit less than others & is a very established, highly respected group & possibly may grade your coins without registering & holdering them, but not sure. However, having them graded, registered, & guaranteed, will greatly increase their value & being in the registry for ever helps even more. Pick a few good coins & send them for grading. I just checked on Heritage auctions (a great resource for checking coin values) they range from just over $100.00 to $400.00 with a 1921 going just for $1620.00. Greatly depends on their condition. Do not clean them, it can ruin their value. Good luck!