GREAT BRITAIN – Osborne, H.: British Line Engraved Stamps. Repaired Impressions (1949), 238 pages + many plates, hardcover; PLUS: Osborne, H.: British Line Engraved Stamps. Twopence Blue. Studies of Plates 1 to 15 (1946), 170 pages + plates, hardcover. Both books with gold stamping on spine & front cover. Good condition and rare. Estimate: 200 Euro