https://postalhistorygb.com/product/gb-used-abroad-antigua-sg-192-cover-b16-numeral-railway-tpo-1880-naval-n02c/
GB USED ABROAD Antigua SG.192 Cover *B16* NUMERAL Railway TPO 1880 NAVAL N02c - Samwells Postal...
Oct 13, 2021 - Antigua Cover HMS EMERALD Maritime Devon PLYMOUTH BRISTOL TPO *B16* NUMERAL 4d Dull Green Arrival GB London 1880 N02c RARE....