Great Britain 1854 1d Red Brown Plate 1. 181, SG17a.
Very fine used left hand marginal imperforate three sides horizontal pair lettered JA-JB, neatly cancelled by Manchester '498' sideways duplexes for JY.1857, rough torn from sheet margin at left and showing part central sheet ornament.
An extremely rare variety of which only a handful of examples exist. This pair is believed to be the finest in private hands and therefore a real prize.
GB Specialised Catalogue Number: C1h.
Accompanied with a 1990 British Philatelic Association (BPA) Certificate of Authenticity.