GB Scotland NORTH BRITISH RAILWAY Letter Stamp 2d Grey-Green *FULL SHEET* RS51

GB Scotland NORTH BRITISH RAILWAY Letter Stamp 2d Block{12} NBR Mint MM RS51
EXTREMELY SCARCE FULL SHEET of TWELVE in a distinctive dull grey-green shade. ROUGH IMPRESSION. SCARCE PRINTING believed to be of WW1 Wartime vintage. Most units are UNMOUNTED MINT with full original gum.  Extremely Fine for an item of this type & period. Please look at all the scans to help form your own opinion (WAF).
Important note re **COMBINED POSTAGE & PACKING**. Please note that we always combine postage when we get the chance to invoice a group of items. Additional items are packed & combined at a rate of 25p P&P per additional item on internal GB mail & 75p per item P&P on International mail. The maximum number of items we will combine in one package is twelve {12 items}. The maximum period of time we allow for you to combine items is exactly 8 days from the point of purchase of the first item. Please be advised that after 8 days has elapsed eBay automatic systems will open an Unpaid Item Case.