Stamps

June 17, 2026 • Stamps

Stamp Errors and Varieties: What They Are and What They’re Worth

Inverts, missing colors, imperforates — stamp errors and varieties hold philately's biggest prices. The classic types, what drives value, and why expertization matters.

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June 17, 2026 • Stamps

MNH vs. Hinged: What Gum Condition Means for Stamp Value

Gum quietly drives mint stamp value. What MNH, MH, HR, and OG mean, why never-hinged commands a premium, and how to avoid regummed stamps.

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June 17, 2026 • Stamps

How to Value an Inherited Stamp Collection

Inherited a stamp collection? How to assess it without destroying value — do no harm, identify by catalog number, separate catalog value from market value,…

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