Stamp Glossary "F".

  Fake  A genuine stamp which has has any altering to its colour, perforation, postmark, etc. to enhance its value in order to defraud.

  Fake - Colour  Chemical treated of a stamp to alter its colour; a rare shade may be produced from a common one, or colours can be changed entirely.

  Fake - Perforation  Amongst perforation fakes to be found are imperforate stamps perforated, perforations removed and wide imperforate margins added, gauge of perforations altered, etc.

  Fake - Repaired  This inlcudes the adding margins and to painting-in missing portions of torn or badly damaged specimens. 

  First Day Cover   Cover franked with a postage stamp or set of stamps postmarked on the first day of issue.

  First Flight Cover  A cover which has been carried on the first mail flight between two points and usually commemorated as such on the cover itself.

  Fiscal Stamps  Used for the collection of taxes or fees for non-postal purposes such as on official documents.

  Flaw   A blemish upon the design of a stamps or its perforation, which has arisen in the course of manufacture. 

  Forgery   An imitation of a stamp intended to deceive. 

  Fugitive Colours  Stamps with special ink to print some stamps so that they will change, fade or wash out if any attempt is made to tamper with the stamp, postmarks etc.

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