Vintage Heavy Duty Screw Jack House Barn Railroad Jack Ratcheting Screw Jack 
Vtg AMERICAN SCALE Co. Building Jack 1-1/2 x 10- Barn Jack-Railroad Screw Jack
Vintage AMERICAN SCALE Co. Building Jack 1-1/2 x 10 Screw Jack
VINTAGE Duff Norton 15 Ton Bottle Jack 2-1/2 inch rise No. 1507 Ratcheting Jack
Vintage Vulcan Brand Railroad Jack 1 & 1/4 Inch X Inch Screw Type Jack
Vintage DUFF 2x8, Cast Iron Screw Jack, House or Railroad jack 20 ton
