The Black Blot program consequences to Qatar Philately.

The American Philatelic Society (APS) was unashamedly proud of its Black Blot program as as such promoted it with other Philatelic bodies.

This had direct consequences as to which stamp issues would be included in the Stanley Gibbons catalogues, and which countries would be disqualified from exhibitions and so on.

The APS and its congeners had a particular disdain for souvenir sheets (or miniature sheets as sometimes they are referred to) and to imperf sheets. The latter resulted in Qatar being banned from Fédération Internationale de Philatélie exhibitions.

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Although, never actually terminated, the Black Blot program lost some of its impact around 1980's.

Happily, nowadays Qatar Philatelic community remains well and alive, and no longer banned from exhibitions.