Databases and online auctions. Kovels offers a free subscription to its antiques price guide and two premium services, at $39 and $60 a year. Craigslist is useful for seeing what others are ...

Spiritartist/iStockDepression glass, with its rich history and intricate craftsmanship, is a staple at any and every antique store, but that doesn’t make these pieces a dime a dozen. During the Great ...