17th-century coach spring in Lisbon Carriage Museum The earliest recognized leaf springs started showing on carriages in France in the mid-17th century in the form of the two-part elbow spring (as being the illustrated illustration from Lisbon), and afterwards migrated to England and Germany,[6] showing up within the carriages of https://car-filters43196.tribunablog.com/rumored-buzz-on-axle-assembly-49868730