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

Gaza 1958 (Dec 10): 10th Anniversary of Human Rights, 35 m. brown, an unused example, variety "Overprint in Brown" instead of green from a single Colour Trial sheet of 50, fresh and fine, unmounted og. Extremely rare, just 50 printed thus Nile Post PC4ct = $ 200+ / Gi = £ 500.
Note: Listed in Stanley Gibbons as an error on the issued stamp, this is, however, a Colour Trial for the overprint.