Experts
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Recommended resources
- Filatelia.fi – Details about expertizers of British Colonies
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Literature
For further research
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1885-90. Queensland stamps used in British New Guinea. Cancellation: The Encyclopedia of British Empire Postage Stamps 1661-1947, Vol. IV, pp.355,56. Faked postmarks: Hamilton Croaker, “Adhesives of Queensland Faked to appear Used in British New Guinea”, The Philatelist, Vol. 29 (February 1963): 116,17.
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2. 1p British New Guinea stamp, 1901-05. Overprint on Specimen stamps: The Encyclopedia of British Empire Postage Stamps 1661-1947, Vol. IV, p.357.
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8. 2sh6p British New Guinea stamp, 1901-05. Sperati forgery and fraudulent cancellations: British Philatelic Association (Publisher), The Work Of Jean De Sperati, p.59 and Plate 14. Sperati forgery: Robson Lowe, “Sperati and His Craft – XV”, The Philatelist, Vol. 20 (July 1954): 264-68.
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Sperati and other forged cancellations. The Encyclopedia of British Empire Postage Stamps 1661-1947, Vol. VI, p.387.
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15. 2sh6p Papua overprinted stamp, 1906. Measurements of genuine overprint: The Serrane Guide/ Stamp Forgeries of the World to 1926, p.269 (Yvert 9-24).
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C1-C4. Overprinted Airmail issues of 1929 and 1930. Forged overprint. Robson Lowe (editor), The Gee-Ma Forgeries, p.11.
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Genuine cancellations. The Encyclopedia of British Empire Postage Stamps 1661-1947, Vol. IV, pp.352-55.
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Five Madame Joseph fraudulent postmarks, 21. May. 07 to 24 MR 31. Derek Worboys and Roger B. West, Madame Joseph Forged Postmarks, pp.81,82.
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Paquebot Cancellations. Fraudulent cancellations: “Faked and Fictitious Paquebot Cancellations”, Edwin Drechsel, Philatelist and PJGB, Vol. 9 (March-April 1989): 40-45. Philip Cockrill, letter to the Editor expressing a different view: Philatelist and PJGB, Vol. 9 (July-August 1989): 168,69.
Source: The Tedesco Index