cover 1903 (21 Apr.) XU5 (damage on reverse due to being stuck down and roughly lifted) registered to Edinburgh, bearing perf. 12¾ black overprint 4a. block of five and 10a. with Christian IX 5a. and 20a. "PJONUSTA" error (perfs clipped at left), cancelled by "bridge" c.d.s. and showing boxed "R", rare unframed "SHIP LETTER/BLYTH NORTHD" and town c.d.s. adjacent; several adhesives affected by blue registration crayon. A rare and most unusual franking. Photo