Lot 30981 – Zanzibar 1852. Incoming envelope sent from Colmar France

1852 Incoming envelope sent from France to Emile Kuhlmann at the French consulate at Zanzibar, charged 25 decimes, sent via Strasbourg, Marseille and likely via the Atlantic & COGH, from the Kuhlmann correspondence referenced in Dubro’s book “Zanzibar’s Postal History Legacy” (fig.2-38); very rare, ex Richard Knight