cover 1868 (Mar.) envelope from Bangalore to a member of the "Madras Sappers & Miners Field Force Abyssinia" and franked at 4a., and 1868 (May) mourning envelope (faults at foot) to Bangalore bearing 4a. cancelled "F.F." in diamond of bars, both showing partially legible strikes of the "FIELD FORCE POST OFFICE/ABYSSINIA" c.d.s. in red

Details
cover 1868 (Mar.) envelope from Bangalore to a member of the "Madras Sappers & Miners Field Force Abyssinia" and franked at 4a., and 1868 (May) mourning envelope (faults at foot) to Bangalore bearing 4a. cancelled "F.F." in diamond of bars, both showing partially legible strikes of the "FIELD FORCE POST OFFICE/ABYSSINIA" c.d.s. in red