Germany

 Printed on yellow-orange with fancy typeface

Size: 19mm x 40mm**, unperforated, ungummed.

 Günter Mair catalogue: GER-A-10a (1927)

 Printed on dark blue. Par Avion : 20.5mm

Size: 19mm x 40mm**, perforated, gummed.

 Günter Mair catalogue: GER-A-12 (1928)

Under study!

 Printed in light sans serif typeface. Par Avion : 19mm

Size: 19mm x 40mm, perforated on left and right, ungummed.

 Günter Mair catalogue: FRG-A-2 (1952)

 Printed in bold sans serif typeface on dark blue.  Par Avion : 20mm

Size: 19mm x 39mm, perforated on left and right, ungummed.

 Günter Mair catalogue: FRG-A-3a (1960)

Similar to the previous design but on violet-blue.  Par Avion : 20mm

Size: 19mm x 39mm, perforated on left and right, ungummed.

 Günter Mair catalogue: FRG-A-3b (1991)

Günter Mair catalogue: FRG-A-? unlisted. 

 (circa 1982)**

Printed in two colours.
Size: 20mm x 40mm, self-adhesive and die cut.

Günter Mair catalogue: FRG-A-? unlisted. 

 (circa 1900)

Printed in two colours.

Size: 20mm x 40mm, self-adhesive and die cut.

Günter Mair catalogue: FRG-A-? unlisted. 

 (circa 2000)

Printed in single colour.

Size: 20mm x 40mm, self-adhesive and die cut.

Günter Mair catalogue: FRG-A-? unlisted. 

(circa 2010)