- 1-19. “Group type issue” of 1897-1907. Forgeries (Fournier) have reversed perforations: Scott Classic Specialized Catalogue. Fournier fraudulent cancellation: The Serrane Guide/ Stamp Forgeries of the World to 1926, p.48; A.J.C.Vaurie, “Know Your Forgeries” column, The France and Colonies Philatelist (U.S.), Vol. 3 (March-April 1944): 11,12. Also see French Congo 18-34.
Source: The Tedesco Index