1887-90 BONC PROVING COVERS: Covers from BARKLY and BARKLY WEST with proving numerals 232 showing the two names of the town in the postmarks; Covers with Numeral 529 at GRIQUATOWN. All addressed to Cape Town at either the 2d rate or 1d colonial rate (introduced 1st January 1889). Also an incoming postcard from Kimberley with Barkly GW arrival cds. With imperfections for which see scans. A scarce group.
