17th-century coach spring in Lisbon Carriage Museum The earliest known leaf springs began showing on carriages in France while in the mid-17th century in the shape of The 2-element elbow spring (because the illustrated instance from Lisbon), and afterwards migrated to England and Germany,[6] showing up over the carriages of https://garretticujy.kylieblog.com/36020440/top-guidelines-of-trailer-jack