French Colonies Soudan 1926 Cover to French Morocco

envelope bearing Yvert 23, 5c brown (2) and Yvert 24, 10c green tied by Bamako Soudan Francaise double-ring, underpaid and bearing French Maroc Postage Dues Yvert 30, 20c olive applied and tied on arrival by Casablanca Maroc datestamp. Nice combination. (pt)    ID: 32196