Long Island 1916 ½d black on pale green G.R.I. double error, SG4a Canada stamps rarely seen in such quality

rarely seen in such quality

framed and glazed

date above

Pirie-Gordon

ERROR IMPERFORATE BETWEEN

Long Island 1916 ½d black on pale green G.R.I. double error, SG4a Canada stamps rarely seen in such qualityLong Island 1916 (7 May) d black on pale green paper with horizontal grey lines, SG4a, typewritten (top copy as always), right marginal from Plate 2a, position 12, showing error 'G. R. I. double' (with the first impression under 'G ISLA' of 'LONG ISLAND'). A superb quality unused example. Only three existed (from positions 10 12 of this plate), but this is one of only two recorded, and much the finer. Provenance: Ex 'Mountrobeck' (Christies Robson