Great Britain- Essay : A Charles Whiting essay produced for Rowland Hill's 1839 Treasury Competition to find a design for the soon-to-be issued first British postage stamp (and) introduced the idea of corner check letters. The CW in the lower corners is Charles's initials. Stirling notes, "..there are reprints.. (originals) ..can be distinguised when in the full sheet.." (see link at left).
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