Greek postage due forgeries

The 1875 and 1876 postage dues of Greece have been forged by Fournier and others.

Both genuine and forgeries are lithographed. The Fourniers show cler evidence of being relatively poor photographic copies. For the genuine stamps, the white lettering in the circle are well-formed and have only very slightly rounded corners. The letters in Fournier forgeries can be distorted, the letters puffy, especially noticeable in the "M"s, and corners more rounded. Genuine stamps are in medium green or bluish green; Fourniers are in a couple of shades of pale grayish green.

Fournier used fake cancels in differently styles, typically struck SOTN. They are:
 * ΑΘΗΝΑΙ 6 6 22 ΑΠΡ. 10-Π 1896
 * ΚΟΡΙΝΗΟΣ 2 ΙΕΚΕΜ 1896
 * ΠΑΕΟΡΙ 1 ΝΟΕΜ. 75
 * ΡΓΟΣΤΟΛΙΟΝ (110) 8 ΙΟΓΑ.' 77; this is in error and the city should have been ΑΡΓΟΣΤΟΛΙΟΝ (Argostolion)

A roughly printed mint forgery exists that may or may not be a Fournier. The Senf Brothers created a forgery with "FACSIMILE" in black as typical of them.  File:Greece 10L due large.jpg|Genuine 1876 10L (large black letters) File:Greece due forgery.jpg|70L Fournier forgery 