Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Thursday, March 20, 2025 at 3:00 PM UTC

British Commonwealth - Australian States - South Australia

Start price: $750

Buyer's premium:

1893, Queen Victoria, brown surcharge 2½d on 4p green, perforation 15, watermark Crown SA, bottom right corner margin block of 30 (6×5), left stamp of the second row with ”½” nearer to ”2” (position 7/7 of a complete sheet), full OG, NH, VF and rare multiple, NPC certificate, C.v. $2,020, SG #233, b, C.v. £1,870++, both catalogs for hinged singles, Est. $1,500-$2,000, Scott #99, a