Envelopes and wrappers (postal stationery)

The Kaptai-Hydro-Electric-Dam was completed in 1962.So my best guess is,
that this air-mail-inland (?)-cover was issued at that time.
The dam is situated in East-Pakistan (today Bangldesh),roughly 100 km north-
east of Chittagong in the hill-region.
issued 1971

 

Have no information,when this air-mail envelope was issued;
issued 1976

 

What is the image on the stamp imprint? It reminds me of a stylized version of a Concorde.

Don

 

Don,
I really don´t know.It reminds me of something,but I cannot recall.
Could be an air-plain,the down-pointing nose reminds of the Concorde.
But could be a stylized bird as well.Possibly a Garuda ?

Werner

 

Don,
after posting the above,I typed Pakistan postal stationery and found
a fine catalogue.The envelope is listed as from 1976.The design is a
"stylized air-plane".

Werner

 

International air-mail cover,issued 1987;

 

International air-mail cover,issued 1989

 

International air-mail cover,issued 1993

 

international air-mail cover,issued 1994

 

registered letter,issued 1950

 

Interesting item. Seems odd to me that the postage imprint is on a flap and the flap closes on the address side of the envelope.

Don

 

registered letter,issued 1973

 

registered letter,issued 1980

 

registered letter,issued 1990

 

same registered letter,backside

 

issued 1994

 

issued 1993