Cameroons (French ) 1919 Reg. Stationery Env.

Registered Postal Stationery Envelope 5c green upgraded with Yvert 72, 15c purple & lilac and Yvert 78, 45c violet & orange tied by Edea Cameroun double-ring wih German Cameroon registered label, routed via Duala addressed to Switzerland with receiver on reverse in Buchs. Very fine. (pt)    ID: 15489