Forged stamps of Gibraltar

• Forerunners, British stamps used in Gibraltar, 1857-1902:
  Genuine cancellations: The Encyclopedia of British Empire Postage Stamps 1661-1947, Vol. I (Second Edition), pp.365,66.
  Forgeries of the “G” and A24 cancellations: Bertrum McGowan, “Gibraltar: Postmarks on British Stamps”, The British Philatelist, Vol. 24 (March 1931): 3-7.
• 1-7. Overprinted Bermuda stamps, 1886. Sperati and Spiro forgeries and forged overprint: W. Hine-Hancock, “Posted in Gibraltar 12: Fakes And Reproductions”, The Philatelist, Vol. 43 (September 1977): 348-52. N. Imperato forgery of the 4p, 69, 1sh: The Serrane Guide/ Stamp Forgeries of the World to 1926, pp.148,49 (Yvert 1-7). See listings for individual stamps below, for more citations.
• 3,6. 2p and 6p, 1886. Sperati forgeries of basic stamp and overprint and fraudulent postmarks: British Philatelic Association (Publisher), The Work Of Jean De Sperati, pp.42,43 and Plate 6; additional Sperati forgery of the 2p: Robson Lowe and Carl Walske, The Work of Jean De Sperati II/ Including Previously Unlisted Forgeries, pp.12-17 and Plate A. Sperati forgeries and fraudulent postmarks: Robson Lowe, “Sperati and His Craft – XVIII”, The Philatelist, Vol. 21 (October 1954): 12-16.
• 5. 4p overprinted stamp, 1886. Four Sperati forgeries of basic stamp and overprint: Robson Lowe and Carl Walske, The Work of Jean De Sperati II/ Including Previously Unlisted Forgeries, pp.12-17 and Plate A.
• 7. 1sh stamps Overprinted Bermuda stamp of 1886. Sperati forgeries of basic stamp and overprint and fraudulent cancellation: British Philatelic Association (Publisher), The Work Of Jean De Sperati, p.43 and Plate 6; three additional Sperati forgeries: Robson Lowe and Carl Walske, The Work of Jean De Sperati II/ Including Previously Unlisted Forgeries, pp.18,19 and Plate A. Sperati forgeries: Robson Lowe, “Sperati and His Craft – II”, The Philatelist, Vol. 19 (June 1953): 223-27, continued at Vol. 20 (October 1953): 2-4, and at Vol. 21 (October 1954): 12-16.
• 16-21. High values of the issue of 1886-98. Fakes, made by altering values of Scott 11 or 36: The Serrane Guide/ Stamp Forgeries of the World to 1926, p.149 (Yvert 8-14). See listings for individual stamps below, for more citations.
• 16. 4p orange value of 1886. Two Sperati forgeries (one of a proof only) and fraudulent postmarks: British Philatelic Association (Publisher), The Work Of Jean De Sperati, p.44 and Plate 7; additional Sperati forgery: Robson Lowe and Carl Walske, The Work of Jean De Sperati II/ Including Previously Unlisted Forgeries, p.20 and Plate A. Sperati forgery and fraudulent postmarks: Robson Lowe, “Sperati and His Craft – XVIII”, The Philatelist, Vol. 21 (October 1954): 12-16.
• 18. 6p violet, 1886. Two Sperati forgeries: British Philatelic Association (Publisher), The Work Of Jean De Sperati, pp.44,45 and Plate 7
• 20. 1sh bister, 1886. Sperati forgery and fraudulent cancellations: British Philatelic Association (Publisher), The Work Of Jean De Sperati, p.45 and Plates 7,8. Sperati forgery: Robson Lowe, “Sperati and His Craft – II”, The Philatelist, Vol. 19 (June 1953): 223-27, continued at Vol. 20 (October 1953): 2-4.
• 22-28. Provisional issue, 1889. Fraudulent postmark: The Serrane Guide/ Stamp Forgeries of the World to 1926, p.149 (Yvert 15-21).
• 35. 75c Queen’s Head, 1889. Sperati forgery: Robson Lowe and Carl Walske, The Work of Jean De Sperati II/ Including Previously Unlisted Forgeries, p.21 and Plate A.
• 11 Madame Joseph fraudulent postmarks, A 26, JU – 13/87 to 1944. Derek Worboys and Roger B. West, Madame Joseph Forged Postmarks, pp.54,55.

Source: The Tedesco Index