- 1-3. Issue of 1859. Alden C. Johnson, Forgeries Old and New, Vol. 2, p.21. Forgeries and Fournier and other fraudulent postmarks: The Serrane Guide/ Stamp Forgeries of the World to 1926, pp.180,81 (Yvert 1-3). Privately applied postmark using genuine canceller: Rick Miller, “Ionian Islands stamps offer opportuntity to form a complete collection”, Linn’s Stamp News (June 18, 2007): 20. Four forgeries, genuine and fraudulent postmarks: Reverend R.B. Earée, Album Weeds/ How to Detect Forged Stamps (Third Edition), Vol. 1, pp.511-13. Robson Lowe and Carl Walske, The Oneglia Engraved Forgeries, pp.54,99. Characteristics of the genuine stamps: Hermann Schloss, Distinguishing Characteristics of Classic Stamps: Europe 19th Century (Except Old German States), p.54. Fraudulent cancellation: The Encyclopedia of British Empire Postage Stamps 1661-1947, Vol. I (Second Edition), pp.427. J. Dorn (Publisher), The Forged Stamps of all Countries, p.98.
- Genuine and fraudulent postmarks: Reverend R.B. Earée, Album Weeds/ How to Detect Forged Stamps (Third Edition), Vol. 1, pp.511-13.
- Genuine postmarks: Jere Hess Barr, “The Stamps And Postmarks Of The Ionian Islands, Nineteenth Century”, The American Philatelic Congress Book 8 (1942): 29-41, and Supplemental Article: The American Philatelic Congress Book 13 (1947): 111-23. Fritz Billig, Billig’s Philatelic Handbook, Vol. 32, pp.109,11.
- German and Italian occupations:
- N1-N17. Italian issue for Cephalonia and Ithaca, 1941. Forged overprint: Roy Dehn letter to the Editor, The London Philatelist, Vol. 105 (July-August 1996): 194 (the illustration is on (June 1966): 168 – recent discovery by Norman J. Collins).
- N26, N27. Zante Issue (German), 1943. Five forged overprints: German Philatelic Society Reference Manual of Forgeries, Vol.14, “German Occupation 1939-1945” (Michel Zante (Ionian Islands) 1-3).
Source: The Tedesco Index