Auction 333-341 Australian States & Commonwealth of Australia and New Zealand – The ‚KOOYONG‘ Collection - Day 2

Bulaq Issue 1874/75: Bulaq 20 pa. grey-blue, wmk. inverted, perf. 13½ x 12½, an unused vertical pair, variety "Imperforate between Horizontally", some peripheral blunted perfs., fine large part og. Extremely rare - just ten pairs are believed possible / probable however this pair mentioned in Nile Post "One example is known to exist" and much under-catalogued. Signed Todd AIEP Nile Post D25p = $ 600 / Gi = £ 300.