cover Travelling Post Offices: 1873 (1 August) envelope to Newcastle-on-Tyne, bearing 1864-79 1d. plate 147 tied by fine strike of the "PORTSMOUTH/SORTING CARRIAGE" c.d.s. and showing additional strike on reverse, the envelope showing the crest of Osborne House on flap; two small tears at top and part of flap missing on reverse