Seventeenth-century coach spring in Lisbon Carriage Museum The earliest identified leaf springs started appearing on carriages in France within the mid-17th century in the shape of The 2-aspect elbow spring (as being the illustrated illustration from Lisbon), and later on migrated to England and Germany,[6] appearing on the carriages of https://damiennibsi.sharebyblog.com/35273288/fascination-about-trailer-jack