in the margin, "Bechuanaland British" on the stamp; vertical creasing as usual. Holcombe Certificate (1989). S.G. 30c, £550. Photo" /> unused A fresh mint single with interpanneau margin at left, variety overprint double, one vertical, misplaced with<I> "British"</I> in the margin,<I> "Bechuanaland British"</I> on the stamp; vertical creasing as usual. Holcombe Certificate (1989). S.G. 30c, £550. Photo | Christie's