Bhutan Aerogrammes -1989.
Bhutan Post issued a 3.50 Nu Aerogramme possibly in 1989 as per cancellations studied by experts. The Aerogramme features a Bird and Flower in stamp design and an aeroplane over a mountain in cover design.
Aerogramme, Aircrafts/aeroplanes, Asian Philately, Birds, Flora, Mountains, Postal Stationery, Transport
Bhutan Aerogrammes -1989.
Stamp Digest 