Lot 50021 – British West Indies – Group of ten cancellation essays and original stamps with pmks retained

British West Indies – Cancellations: group of ten including a unique assembly of four genuine stamps which Sperati used to reproduce postmarks and affixed to cellophane, with three chemically treated consequently exhibiting the design missing to retain the two barred « A07 » ovals of Dominica, paper essay with barred « A11 » and matching St. Lucia cds dated Dec. 1944, four pelure paper essays with barred « A12 » of St. Christopher, and Tobago cds with two matching types of « A14 », as well as paper essay showing « A08 » of Montserrat.