1897. Registered Advice of Receipt envelope addressed to the 'French Post Office, Zanzibar' bearing France Type Sage Yvert 89,10c black (faults) and Yvert 98, 50c rose tied by Arras/Pas de Calais double ring with boxed 'Registered' and boxed hand-: struck 'AR', routed via Marseille with French Post Office Zanzibar receiver on reverse j with Zanzibar Avis de Reception label attached.