cover Cawnpore: 1831 entire letter to Glasgow showing "CAWNPORE/POST OFFICE/PST PD" double ring d.s. (HG 4), boxed "INDIA LETTER/LONDON" etc., also 1834 entire letter to Calcutta showing "CAWNPORE/P.T PD" single-ring d.s. (HG 6); fair to good strikes. Scarce pair