SG2237 Variety. 2001 (2 October).
65p Black and silve. Hologram. 'Imperforate Pair'.
Brilliant fresh Unmounted mint full corner Plate Number sheet marginal block of six (3 Pairs). Also showing 'Enschede' printers name.
(From the recently discovered part sheet containing just 18 pairs. This is the UNIQUE 'key' piece).