Royal Canadian Air forces - plakaatti 12x10 jalustalla - Per ardua ad astra ("Through adversity to the stars"or "Through struggle to the stars" is the motto of
Royal Canadian Air forces - plakaatti 12x10 jalustalla - Per ardua ad astra ("Through adversity to the stars"or "Through struggle to the stars" is the motto of the Royal Air Force and other Commonwealth air forces such as the RAAF, RCAF, RNZAF, and the SAAF. It dates from 1912
