29.01 patent date. A few small spots on the sole with micro pitting. One knob has an owner initial and the other has a couple tight cracks or checks. Still retains most of the original, but dirty nickel plating. The item “TYPE 4 1911-1924 STANLEY No 71 1/2 CLOSED THROAT ROUTER PLANE-ANTIQUE HAND TOOL” is in sale since Friday, May 21, 2021. This item is in the category “Collectibles\Tools, Hardware & Locks\Tools\Carpentry, Woodworking\Planes”. The seller is “woodsman130″ and is located in Somerset Center, Michigan. This item can be shipped worldwide.