17th-century mentor spring in Lisbon Carriage Museum The earliest identified leaf springs commenced showing on carriages in France within the mid-seventeenth century in the shape of the two-part elbow spring (because the illustrated case in point from Lisbon), and later on migrated to England and Germany,[six] showing over the carriages https://axle-assembly57901.frewwebs.com/36005222/how-trailer-jack-can-save-you-time-stress-and-money