Out of stock
Great Britain 1963 Windsor Castle £1 black. Bradbury Wilkinson unissued printing on Chalk-surfaced paper. Superb unmounted mint condition. David Brandon Certificate No. 23,218 (1998). There are two theories as to the status of this stamp. The first suggests that it is from a small printing of 30 made prior to the introduction of non-watermarked paper. The other is that it is a Paper Trial printing. QUANTITY : 30 MINT. OUTSTANDING AND EXCEEDINGLY RARE. AN EXHIBITION PIECE.