cover 1864 (Sept.) envelope from Demerara to Exeter, bearing 1862-65 thin paper, perf. 12 8c. strip of three each cancelled "A03" and showing London Paid c.d.s. in red below, Demerara and Exeter c.d.s. on reverse. A rare and attractive franking. R.P.S. Certificate (1994). S.G. 46. Photo