Danish West Indies. (Great Britain used Abroad). 1866. Folded letter addressed to 'His Danish Majesty's Consul General, London' bearing Great Britain SG 101, 1s green (plate 4) tied by 'C 51' obliterator with St-Thomas double arc dispatch on the reverse 'Mr 14', endorsed 'per steamer', with circular 'London/Paid/ 30 Mar 66' receiver in red on face.
Stamp alone SG 101, plate 4 catalogue by Stanley Gibbons 275 GBP.