Sweden

Size: 14mm x 38mm, rouletted, gummed

Günter Mair catalogue: SWE-A-5 (1947)

Wording changed to "FLYGPOST"

Size: 14mm x 38mm, roulleted, gummed.

Günter Mair catalogue: SWE-A-6 (1953)

Printed for first class letters with bold letter "A"

Size: 17mm x 35mm, self-adhesive label.

Günter Mair catalogue: SWE-A-? (circa 1993)

Printed with ref: "1:a-klassbrev" 

Size: 16mm x 36mm, self-adhesive label.

Günter Mair catalogue: SWE-A-? (circa 2000)