Planning to sort through grandpa's shoebox full of old coins? Put the new stuff aside and look for coins from the midcentury days and before.

1916 Standing Liberty Quarter: $2,800+ The Standing Liberty quarter remains “among the most collectible old coins ever made” by the U.S. Mint, according to Gainesville Coins.

What did survive were a 1795 5-cent coin, an 1800 Liberty dollar, 1818 25-cent coin, 10-cent and 1-cent coins from 1827, and an 1828 50-cent coin. There was also an Erie Canal commemorative medal ...

1969-D Kennedy Half Dollar: $2,640+ Versions of this coin in pristine, uncirculated condition can sell for as much as $6,000. 1916 Standing Liberty Quarter: $2,800+ ...