Ligne M3 is a collective made up of the three Marolf brothers. Julien, born in 1972 in Geneva, is a sculptor; Nicholas, born in 1971 in Nyon, is a painter/engraver/stenographer, and Vincent, born in 1966 in Geneva, is a jeweller. Formed from a desire to combine their respective arts, Collectif Ligne M3 sets up installations conceived by the threesome, dealing mainly with political subjects. They have taken part in various collective exhibitions organised by the association of Swiss artists VISARTE.