51th Auction - Day 2

Australien: 1934, AUSTRALIA - NEW GUINEA - AUSTRALIA, group of 3 first flight covers, all with mixed
1934, AUSTRALIA - NEW GUINEA - AUSTRALIA, group of 3 first flight covers, all with mixed franking Australia & New Guinea for the round trip. Two covers with 2d KGV and 6d airmail stamp each from Melbourne and returned with New Guinea 2d from Lae resp. 2 x 2d from Rabaul;
the third cover sent registered with 2d KGV, 3d & 6d airmail stamps from Sydney and returned registered with New Guinea 2d, 3d and 6d airmail stamp from Lae to Neutral Bay/NSW.
All covers with official flight cachets. F/VF condition.