1900 2/- on 1/- green of British Bechuanaland, VARIETY TYPE 1 (SERIFED) OVERPRINT (SG 11d). VF/U example of this rarity with Mafeking cds MY 11 1900. A connoisseur's exhibition showpiece with only 3 recorded extant. Photo-cert & Signed: Brandon (2007, as SG 16var). Photo-cert: Eichele BPB (2016 as SG 11d): "A fresh, well centred stamp with unwashed full original colour. An exceedingly rare stamp with only three known." (cv£38000). See additional images and of certificates below.
Accompanied by 2005 article discussing the stamp and its inclusion in the SG catalogue of 2006.