Orange River Colony 1900 ½d Ovpt Double - Ten Copies!

1900-02 ½d OVPT DOUBLE (SG 133b). VF/M/UM GROUP OF TEN EXAMPLES comprising BLOCK OF FOUR and BLOCK OF SIX apparently from same sheet. The doubling of typical varied intensity but decisively present on all 10 stamps. The block of four VF/M with hinge remnants, the block of six VF/M on top pair, UM on remaining four. Clear 2004 RPS photo-attest for the block of four, equally relevant to the block of six. Rare - exceedingly so in multiples thus. Exhibition showpiece group of this very popular niche issue! (cv£6500+). Clickable image of certificate below.