Check the listing for details. Mortise Marking Gauge Vintage. Condition: Used. Listed at 20.30 USD. This is a vintage Mortise Marking Gauge used in carpentry and woodworking. It is a tool used to mark out the mortise and tenon joints on wood pieces. The gauge is designed to make accurate and consistent markings on the wood, ensuring precise cuts and joints. This particular gauge is a collectible item and may be of interest to collectors of vintage woodworking tools.