Literature. Granzow, G.W., 'Line engraved security printing : the methods of Perkins Bacon, 1790–1935; banknotes and postage stamps', hardcover, xxiv+319 pp., The Royal Philatelic Society London, 2012. New, still wrapped in plastic.
A buyer’s premium of 25% plus a 20 SEK lot charge is added to the hammer price
