From a Sail-me airplane advert. Source: https://archive.org/stream/stnicholasserial4821dodg/stnicholasserial4821dodg#page/n545/mode/1up paper toy airplane Paper toy airplane 1920s
Attractive postcard with "par avion" colored border and stamp - drop in your own photo to personalize - PSD stylish modern creative Airmail Stamped Postcard Design PSD