An album page of the 1873-80 Queen Victoria GB Large Coloured Corner Letters series, with the various 2.5d Rosy-Mauve & 2.5d Blue Plate numbers of SG 141 & 142. All the issued Plate numbers of this group are here, including Plate 3&17 of SG141 and Plate 17 of SG142. The 2023 Stanley Gibbons Concise Catalogue lists this page of stamps at over £2800/€3200, so must be worth a few bids when no reserve. I am also listing the 2nd part of this series of stamps (SG144, SG147& SG150) in a separate submission. Please see all the various photographs to help make a fully informed judgement, as they are important part of the description, thanks.