Store unused and collectible postage stamps in a cool, dry, dark and stable environment, using archival materials that do not stick to or chemically damage the paper and gum. Keep self-adhesive unused stamps on their original backing whenever possible.
Control the environment
Avoid attics, basements, vehicles, kitchens and exterior walls where temperature and humidity swing. Direct sunlight can fade ink; moisture can activate gum or encourage mold; heat and pressure can make self-adhesive stamps block together.
Choose safe storage materials
Use purpose-made stamp albums, mounts, stock books or archival sleeves. Avoid ordinary PVC plastic, pressure-sensitive tape, rubber bands, acidic paper and household laminating. Keep albums upright or evenly supported so panes do not curl.
Handle with care
Use clean, dry hands for intact modern panes and stamp tongs for loose collectible stamps. Hold items by their edges, avoid touching gum, and do not remove hinges, flatten creases or attempt cleaning without knowing the effect on condition.
Unused postage versus collectibles
For mail-use inventory, preserve the original backing and organize by postage function and denomination. For collectible material, record issue information, provenance and condition, and isolate any item showing mold, adhesive transfer or staining.
Inspect periodically
- Check for moisture, odor, mold or pests.
- Look for gum adhesion, curling or color transfer.
- Confirm sleeves remain clear and flexible.
- Move materials only after the cause of damage is corrected.
Related guides and products
Sources and verification
Checked September 4, 2026. Postal prices and availability can change.
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