Bob Collects Stamps

#5 – CTOs, Mint, Used?

What are they and are they collectable?

Episode Notes

What are CTOs and should you collect them? Are Mint or used better? Hint: It's your collection.

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Talking about stamps, philately, collecting, a postal history. Worldwide, but with some focus on U.S. stamps. Some episodes are the audio channel from the YouTube videos "Bob Collects Stamps."