2529
cover 1872 (Nov.), 1874 (June) and 1874 (Dec.) envelope from Colombo to Glasgow, each bearing 1872 48c. and illustrating the single, quadruple and treble rate frankings. An interesting trio

細節
cover 1872 (Nov.), 1874 (June) and 1874 (Dec.) envelope from Colombo to Glasgow, each bearing 1872 48c. and illustrating the single, quadruple and treble rate frankings. An interesting trio