The front line markers were installed on the joint initiative of the Touring Club de France and the Touring Club de Belgique in 1921 to mark out on the ground (every 3 to 10 km) the front line from which the victorious offensive of 1918 began, the second battle of the Marne, on the basis of a list drawn up by Marshal Pétain for the French side. The sculptor Paul Moreau-Vauthier, a combatant in 1914-1918, designed the model, giving his name to these 118 markers, known as "Vauthier markers". The bollards are granite monoliths, over a metre high, surmounted by a helmet set on a wreath of laurel, usually a French helmet (Adrian, 1915) but sometimes a Belgian one (Adrian with the coat of arms of the Kingdom of Belgium) or a British one (Brodie, 1915). To make this project a success, the two Touring Clubs organised fund-raising campaigns, to which were added donations from public bodies, associations and private individuals. The launch of a national fundraising campaign in December 1921 was not enough to complete all the planned milestones (240). The first was inaugurated on 11 November 1921 in Château-Thierry.