Dominica, 1885-91, « One Shilling » value tablet, group of 11 items including the copper engraved plate, two proofs in black on transparent paper and eight proofs on white and cream paper. The copper plate, being unique, is very significant, as very few such plates are recorded, regardless from the country, in the Sperati archives and collections; the plate also proves that Sperati, contrary to what it was thought before, also used the typography as alternative to the photolithography.