Troop Distribution and Positions of the French Army), 1905, Detail of Paris. National Archive, Kew

Image Source

"In 1905, the year of this War Office Report on French military resources, Marcel Duchamp was drawn into the 'net' of military conscription that was intended to incorporate every able-bodied twenty-one year old Frenchman into the national effort. Duchamp complied somewhat unwillingly but nevertheless managed to reduce his period of service "