Australia: Registered Airletter

Australia airletter #A-2, on buff paper, sent registered from Perth (6 MAR 47) to Sidney, Ohio (US). Uprated with two 2 ½ d stamps paying the 5 d registration fee.

Reference
Stein, The Aerogrammes of Australia and Its Dependencies, 1944-1980

Australia: Uprated Aerogramme

Australia A-29, uprated with a 5 c stamp, sent from Perth (23 MCH 1968) to the UK.
Funnily endorsed "NO ENCLOSURE". Even if anything was enclosed, the additional franking wouldn't have been enough.

The aerogramme is addressed to Dormer Legge, philatelist and author of, among others, The Kangaroo Issues of the stamps of the Commonwealth of Australia. Melbourne: Orlo Smith & Co., 1948, the first definitive study of the Kangaroo and Map stamps.

New Hebrides: Australia Stampless Series Aerogramm Form

This is AS-3 of the Australian "Stampless Series" aerogramme forms, intended for use in the Australian Territories.

This copy was sent from Tanna, New Hebrides, to France in April 1958. Unfortunately, the postmark is too light to be fully readable.

Australia: Thursday Island Paquebot Cancel

Australia A-7 aerogramme posted at sea on S.S. Dandenong to Sheffield, UK. Fed into the postal network at Thursday Island on 7 NOV 1956, where the aerogramme also received a purple PAQUEBOT cancel.

Thursday Island is 39 kilometres north of Cape York Peninsula, Queensland, Australia in the Torres Strait.

Southern Rhodesia: Unpaid Aerogramme Form

 

Aerogramme form sent from BULAWAYO 11 NOV 65 to Hatfield, UK.  The aerogramme was not franked. As the sender did not provide his/her address on the back of the form, the aerogramme form enervbtheless forwarded, but marked "Insufficient Postage for Air Mail / forwarded by Surface Mail". 

However, the aerogramme form does not show any sign of taxation in the country of origin nor any postage due handling in the country of destination.

 

Ceylon: Short-Paid Aerogramme

Ceylon 50 c aerogramme (Wiegand #27), issued in 1969, used after independence in 1973, when the aerogramme rate was 90 c. Consequently the aerogramme was taxed as short paid. "80" in the tax fraction's numerator stands for double the deficiency, "60" in the denominator for the first weight step international letter rate. 

The international letter rate in the US in 1973 was 15 ct, so multiplying the tax fraction with this rate results in the 20 ct postage due, which was endorsed in the boxed postrage due handstamp.

Pakistan: Short-Paid Aerogramme

This 6 AS aerogramme (Wiegand #13) was uprated with a 2 AS revenue stamp, which was, of course, no valid franking. Hence, the aerogramme was short paid 2 AS for the 8 AS aerogramme rate that was in effect in August 1958.

4 AS double deficiency was converted into 16 UPU ctms postage due, which was endorsed on the left side of the circular "T" handstamp. No obvious postage due handling in the country of destination.