Issued by France in 1979, this 1.80-franc commemorative stamp honors the 150th anniversary of the École Centrale des Arts et Manufactures, one of France’s most prestigious engineering schools founded in 1829. The design by Dessirier features interlocking mechanical gears rendered in bold black, yellow, and green—symbolizing the fusion of art, science, and industrial technology that defines the school’s mission. The geometric precision and technical motif reflect the institution’s contribution to mechanical and industrial innovation in France and beyond.