AM. EX. CO.
MAR 22 1900
David Thompson sends in this scan of an R175 with an American Express cancel. AMEX cancels are common as printed or handstamped cancels on the 1 cent documentary; an AMEX cancel on a dollar value is seldom seen.
What business did AMEX have in using a $5 documentary stamp? I can't imagine its use to pay for 500 entries in a shipping ledger. If you have an answer, and especially if you have seen a dollar value documentary stamp on an AMEX document, please write to email@example.com.