Lot 51045 – 1916 1/2d Black on pale green paper with horizontal grey lines showing variety « G.R.I. » DOUBLE

1916 1/2d Black on pale green paper with horizontal grey lines showing variety « G.R.I. » DOUBLE (with the first impression under « LONG ISLAND »), unused (as issued) right marginal from plate 2a, pos.12, very fine and extremely rare, only three existed (from pos.10-12 of this plate) but this is one of only 2 reocrded and this example being the finest, ex « Mountrobeck », cert. Holcombe (1990) (SG £5’500)