Route map, 40 x 54.5 cm, printed in colours, folds strengthened, blank verso. Prepared to help the French public follow the Citroën expedition’s progress, our map shows the proposed route (dotted where variation was anticipated) including a return leg via Indochina. Beneath is a profile, emphasising the mountainous terrain and extremes of altitude the expedition faced. ‘La Croisière Jaune’ was the third expedition organised by André Citroën to be led by Haardt, his friend and right-hand man at Automobiles Citroën, and Haardt’s deputy, Audouin-Dubreuil. As with the earlier pioneering motor expeditions across the Sahara and Central Africa in Citroën half-tracks, Citroën aimed to raise awareness of his brand and its technical excellence. The Central Asian expedition was the first to cross the Himalayas by motor transport. Haardt himself contracted pneumonia and died in Hong Kong in 1932, having completed his 13,000 km journey from Beirut to Beijing.