For this #mapmonday I dived into the map collections of @vuamsterdam and found this peculiar object. A set of aerial photos made by the K.L.M. (= Dutch Royal Airlines) for promotional ends. Questioning whether the drawn aeroplane on the envelope represents reality the friendly staff of Museum #Aviodrome answered me that indeed it does. The picture (2) they sent me confirms that it is a #Fokker C.II plane and this was the method to take aerial photos in the 1920s and 1930s. Amazing!
Evolution of Gilette Safety Planes









