Antique Union No 5 Jack Plane Cast Iron 10 Inch Vintage Woodworking Tool USA

This is an authentic vintage Union No 5 jack plane, manufactured by Union Manufacturing Company, New Britain, Connecticut. The No 5 "jack" plane is revered by both collectors and woodworkers for its versatility and robust build. This model features a cast iron body with smooth bottom, original hardwood knob and tote, and Union-marked blade—classic attributes found in Union planes from the early 1900s. At 10 inches long, it is a rare shorter variant, perfect for general smoothing and jointing tasks. Early Union planes are well known for their unique, integrated frog design and reliable lateral adjustment mechanism, providing superior blade stability and reduced chatter. This example retains its original lever cap, blade, frog, and adjustment hardware, with functional parts and an honest aged patina showing light surface rust and wear typical of genuine antiques. Union planes were produced up until 1920, and those stamped "Union Mfg Co" are especially collectible. Woodworkers appreciate the tuneable performance and quality feel in these pre-Stanley models. This plane is ideal for restoring, use in hand woodworking, or display in a tool collection. All parts are present and move freely. Review photos for complete details and condition—see images for measurements and markings.