The Hobbizine Price Guides
The prices in these guides are provided as a service to Hobbizine readers. They are derived from numerous sources such as dealer price lists, advertisements in collector publications, and public auction results. Use these values as a guideline for evaluating the reasonableness of dealer prices, setting up trades with other collectors, and estimating the worth of your collection.
United States Stamp Value Guide
Stamps of China Identification and Value Guide