ARCHER EXPERIMENTAL PERFORATION (SG16b) PL.98 HORIZONTAL PAIR LETTERED NK NL ON COVER FROM CARRBRIDGE (SCOTLAND) TO DEVON. 1853 envelope Carrbridge (Inverness) to Ashburton, Devon with pair 1d Archer pl.98 lettered NK NL, centred to upper right and filing crease affects, tied Scottish numerals. Backstamped CARRBRIDGE AU 15 1853. Despite crease a rare provincial usage - only 16 Archer Scottish usages recorded (four of which have pairs) - this ONLY RECORDED USAGE FROM CARRBRIDGE. (Ref 90011).