Cape of Good Hope 1859 6d Triangle on Small Letter

1859 CAPE TOWN to ENGLAND: Superb small format envelope franked full margined 6d deep rose-lilac triangular (SG 7b). "5" rating in red crayon, London-Paid cds SP 27 in red, and manuscript receipt details. Cape Town unlined datestamp on reverse. VF, fresh, charming & attractive, scarce.