Old stamps become useful historical evidence only after they are identified and documented. First separate unused postage, used or cancelled stamps, and complete covers. Then record the exact issue and condition before deciding whether to mail, collect, sell or seek expert help.

Start with the object in front of you

ObjectRecord firstWhy it matters
Unused stampIssue, denomination, gum, hinge, centering, perforations and faultsMay have postal value, collector value, or both
Used/cancelled stampIssue plus cancellation place and dateThe postmark can add historical context
Cover or cardKeep stamp, markings, address side and contents togetherThe full postal route may matter more than a loose stamp

Identification checklist

  1. Record country, inscriptions, denomination and subject.
  2. Look for a date, series name or catalog match; the picture alone is often insufficient.
  3. Note format, perforations, paper, watermark or tagging where relevant.
  4. Photograph front and back in neutral light before handling further.
  5. Describe condition without optimistic labels: include creases, tears, thins, stains, missing perforations or disturbed gum.

Explore U. S. postal history

Build a collection with a defined scope

Choose a boundary such as one issue, era, service, topic, printing method, state postal history or cover type. Use a consistent inventory with catalog reference, acquisition source, condition notes and photographs. A narrow, documented collection is easier to research than unrelated lots purchased because they were labeled “rare.”

Storage basics

  • Use archival, stamp-safe mounts or stock pages and clean, dry handling tools.
  • Avoid tape, glue, lamination, PVC storage, direct sunlight and uncontrolled humidity.
  • Do not detach a stamp from a cover merely to fit an album.
  • Keep provenance, certificates and purchase records with the item.

Postal use versus collector interest

Many genuine unused U. S. stamps issued since 1860 remain valid at their stated amount, but postal validity does not establish rarity or authenticity. Before mailing a potentially collectible stamp, compare the small amount of postage it pays with the evidence that would be lost when it is cancelled.

When to seek expertization

Professional help is appropriate when the exact identification depends on a scarce variety, overprint, grill, watermark, color, repair or suspected alteration—or when a meaningful transaction depends on authenticity. No photograph-only guide can certify the item.

For price research, continue to the stamp identification and value guideFor mailing or buying, return to the vintage stamps hub

Sources

Explore this topic in detail

Use these focused pages for the complete answer, product, tool or reference for each separate task.

  • state stampsBrowse and identify postage stamps commemorating the statehood of all 50 U. S. states.

Explore this topic

Preview each focused page below to understand its core task before opening it. The topic center provides the overview; each child page handles its own detailed answer.