Lot 30167 – 1857 Front to NATAL with 1856 6d lilac wing marginal pair on azure paper

1857 (Mar 13) Front from Edinburgh to NATAL with 1856 6d lilac wing marginal pair on azure paper tied by two strikes of the Scottish « CLERK ST. » boxed hs (type VIII), dated at lower left in ms, tiny tear in wing margin, a rare usage of this stamp (only 44 covers and 2 fronts are recorded by Galland & Louis, The London Philatelist vol.127 p.250-262), ex Earl of Crawford and « Claymore »