1886 MAIL LONDON TO BRITISH GUIANA WITH 4D GREEN (SG192). Envelope London to 'The Honble. Sir D Chalmers, Georgetown, British Guiana' with fine 4d green (SG192) lettered RD tied fine strike 'LONDON.S.W/S.W 12' duplex JU 17 86 code 3. Reverse flap 'HOUSE OF COMMONS/LIBRARY' embossed crest and 'GEORGE.TOWN/B.GUIANA' date stamp JY 16 86. Good usage. (Ref 141638).
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