Stamp Atlas
Every number on this page is an aggregate, computed from the photographed albums. No prices, no locations, no scans of modern designs. Where something is not yet known, it says so.
Method
Photograph once, preserve forever, reprocess forever. A machine's reading is a candidate until a person confirms it; both are kept. A stamp is counted under the issuer whose name is printed on it, in the year it was issued — Ceylon stays Ceylon. Guesses are marked as guesses, and where the atlas cannot say something honestly, it says nothing and shows you the gap.