Adhesive postage stamp
An issued label used as evidence of postal prepayment within a postal system.
Object Anatomy Explorer
Stamp anatomy
Read what belongs to the stamp, what was added during postal use, and which features are evidence rather than decoration.
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postal study1u1
Image or central motif
The dominant visual field may be portraiture, emblem, typography, illustration or another subject.
2
Inscriptions and denomination
Words, numerals and symbols can state postal authority, value or issue identity. Not every system uses the same conventions.
3
Paper, print and surface
Paper and printing method are structural evidence, not just a background for artwork.
4
Edge / separation system
Imperforate margins, perforations or die-cut shapes can be critical identification clues.
5
Back and adhesive
Gum, pressure-sensitive adhesive, backing context or the absence of adhesive affect use and preservation.
Counterexample pair · linked flagship
A cancellation can cover a stamp without becoming part of its printed design.
This is the first bridge into the Contrast Case Engine. The same distinction appears again in Compare and Collections.
Postmark / cancellation
A postal marking added to mail. Smithsonian distinguishes postmarks (place/time) from cancellations (preventing reuse), even when a combined device applies both.
Evidence: npm-markings
Inspection sequence
Look before you label.
A collector’s tool is useful only when it answers a specific identification question.
1 · Observe
Read inscriptions, image, edge, paper appearance and any attached postal context before reaching for a catalog label.
2 · Measure
A perforation gauge can distinguish otherwise similar stamps; magnification can reveal fine printed details.
Evidence: npm-tools
3 · Verify
Match observations against a trustworthy catalog, institutional record or specialized reference rather than assuming that visual similarity proves identity.