Auction 309-320 - Europe & Overseas Egypt, including the Constantin Kelemenis - Day 4

First Issue 1866: 10 pi. slate, Stone B, wmk. Inverted, perf. 12½, an unused example of good colour, centered to lower right, Transfer Matrix type 6, unused without gum. An extremely rare stamp, see fuller details of the 2nd Stone on the Hass certificate illustrated on our website. Signed Todd AIEP. Cert. Hass (1998) Nile Post D7o = $ 300+ / Gi = £ 375+.