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Ash, I., et al
Commonwealth of Australia
A Check List of varieties of the George V 1d. Surface Printed from the Steel PLates made by Messrs. Perkins, Bacon & Co. July 1914-1937
Publisher: The British Society of Australian Philately, 1973
Reprint of the original 1960 edition, paperback (card covers), illustrated, 400 pages, covers lightly soiled and toned, in Good condition.