SG1414b. 1988 14p Christmas.
Christmas 14p. ERROR:- 'IMPERFORATE PAIR'.
A Post Office fresh Unmounted mint full lower left corner sheet marginal cylinder block of twelve (4X3), lower strip (2 Pairs) completely imperforate. The surrounding stamps showing varying degrees of perforation indentations.
JUST 15 IMPERFORATE PAIRS KNOWN!
VERY RARE AND SPECTACULAR SHOWPIECE.