CORINPHILA AUCTIONS 297 - 308 Day 1

1885: De La Rue Colour Trial Proofs (3) for the proposed ½ d. value, all perforated 14 on medium wove unwatermarked paper, all three in green with HALFPENNY Duty Plates in brown, in pale blue-green or in blue. Extremely fine and very rare, ex the De La Rue archives and a probably unique trio.