Vintage set of 2 Poster Stamps promoting the use of Esperanto for international motorists. One Poster Stamp is printed in Polish, the other in Esperanto, both carrying the same message encouraging travelers to use the international language to facilitate communication abroad.

Event: Promotion of Esperanto for International Motorists

Date: 1930-1950

Country: Poland

Language: Polish and Esperanto

Text on Poster Stamps:

Polish:
"Automobiliści, przyjemny pobyt za granicą zapewni wam ESPERANTO"

Translation:
"Motorists, Esperanto will ensure you a pleasant stay abroad."

Esperanto:
"Aŭtomobilante eksterlande vi spertos agrablan tempon se vi uzas Esperanton!"

Translation:
"When motoring abroad, you will have a pleasant time if you use Esperanto!"

Motif: Stylized automobile symbolizing international travel and communication