Cover FRONT from the 'C.G. Mummery, Barclays Bank' correspondence franked with 1933 1d scarlet 'GV' issue (SG 2) tied by fine KHABOS cds with second strike alongside dated 31 MAR 37. Addressed to PRETORIA TRANSVAAL. Ex A. H. Scott collection. Illustrated on page 70 of 'The Cancellations & Postal Markings of Basutoland' by A. H. Scott.