Penny Blue

Penny Blue is a postage stamp or stamp edition.

Overview

It is associated with United Kingdom of Great Britain and Ireland and United Kingdom of Great Britain and Ireland. Catalogue entries for stamps state issue, perforation, gum and certification. VALÉORINE records this subject so that lots referring to it can be described consistently.

In detail

English postage stamp proof

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“Penny Blue”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q7164348: Penny Blue
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