World Banknotes: South Africa South African Reserve Bank, a partially-hand-painted reverse composite essay for an unissued design of £10, ND (1952-58), no serial number or signatures, Afrikaans bank title uppermost, purple colour, bilingual bank text in underprint, tree and diamond mine as central design theme, mounted on medium-thickness card, in flawless as-made condition, a truly beautiful mid-century Bradbury design, arguably more attractive than the issued note BNB and Pick Unlisted, BNB B726 and B727, and Pick 98 and 99 for the notes issued instead £400-£500 Provenance: From the personal collection of an ex-employee of a major UK printing firm