Belgium

"PAR AVION" in bolder typeface and on top.

Size: 19mm x 50mm, rouletted, gummed.

Günter Mair catalogue: BEL-A-14 (1965)

"PAR AVION" in bolder typeface and at the bottom.

Size: 19mm x 50mm, rouletted, gummed.

Günter Mair catalogue: BEL-A-15 (1965)

"PER LUCHTPOST" in bolder typeface, and "PAR AVION" in medium typeface.

Size: 19mm x 50mm, perforated, gummed.

Günter Mair catalogue: BEL-A-17 (1983)

Only in Dutch language.

Size: 13mm x 59mm, perforated, gummed.

Günter Mair catalogue: BEL-A-? 

(circa 1983*)

Printed with ascending aircraft in the middle.

Size: 20mm x 50mm, unperforated, self-adhesive label.

Günter Mair cat : BEL-A-? Unlisted 

(Aug.1996)

Printed with lower ascending aircraft and bolder "PRIOR".

Similar design can be seen printed on the postage stamp.

Size: 20mm x 50mm, unperforated, self-adhesive label.

Günter Mair cat : BEL-A-? Unlisted 

(circa 2007)

Similar to the previous design but added with three circles and white borders.

Size: 20mm x 50mm, unperforated, self-adhesive label.

Günter Mair cat : BEL-A-? Unlisted 

(circa 2013)