Mafeking Siege 1900 SG 6 Ovpt 3, 1d on ½d Vermilion Pair

1900 1d on ½d vermilion of Bechuanaland Protectorate (SG 6 ovpt 3). Superb U pair with Mafeking cds's MY 12. Interesting vertical mutiple proving the horizontal layout across the pane of the six overprint subject types. 6000 overprinted. Signed: Holcombe & Brandon. (cv£160+).