Belgian Congo 1925 Postage Due Cover to French Morocco

Belgium Belgian Congo envelope bearing SG129, 75c orange tied by Thysville datestamp, routed via Boma, underpaid with TAX handstamp and bearing French Maroc Postage Dues Yvert 28, 5c blue (Strip of 3) applied on arrival by Casablanca Maroc datestamp. Very fine combination.

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