17th-century coach spring in Lisbon Carriage Museum The earliest known leaf springs started showing up on carriages in France inside the mid-17th century in the shape of the two-part elbow spring (as the illustrated example from Lisbon), and later on migrated to England and Germany,[six] appearing about the carriages of https://evebotcoffeeprinter42850.look4blog.com/73555005/how-axle-assembly-can-save-you-time-stress-and-money