SG 1136 var. 1980 Sport Centenaries – Boxing Association.  15p. Strip of 3. Imperforate to bottom margin. SUM.

Great Britain 1980 Queen Elizabeth II Sport Centenaries – Boxing Association.  15p. multicoloured.  Bottom marginal vertical strip of three.  Variety, ‘Imperforate to bottom margin’.  Superb unmounted mint condition.  A RARE AND ATTRACTIVE ERROR WITH ONLY CIRCA 30 MINT EXAMPLES IN EXISTENCE.