Latin America Colour Trials, sample Stamps

Latin America, Colour Trials, Sample Stamps, by Robson Lowe. In 1968, Robson Lowe was instructed to sell by Private Treaty a wonderful find of the Waterlow Sample Stamps, and Waterlow Die Proofs and Color Trials. In order to sell their substantial holdings of these rare and unusual items, Robson Lowe published this retail catalog, priced in US dollars. Much seldom seen material. Published 1968, B & W illustrations, 52 pages, stapled card covers, new.