cover 1870 (6 July) envelope "Via Marseilles" to Jersey, bearing Great Britain 1867-70 6d. mauve Plate 8 clearly cancelled with "A25" duplex, showing oval-framed "MORE/TO PAY" (PDO-7), and "DEFICIENT-POSTAGE/FINE ---" (PDO-8) alongside "8D" in circle (PD-82), arrival c.d.s. on reverse; trivial imperfections at top, nevertheless most attractive