7 Orange Brown [1858 4 Skilling, Lined Spandrels] (VF) on 14 September 1858 small DOUBLE WEIGHT envelope with #24 numeral cancel and HELSINGØR side postmark, to København. Paid only for single weight, thus charged POSTAGE DUE with a red "6" for cash payment by the recipient. Though this is a traditional underpaid postage due cover, not one of the terribly rare penalty usages, it is still a seldom seen usage.
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