Foley & Williams 1898 Goodrich B repair/ replacement parts. Thread tension assembly with all parts. Has stud, thread take up spring, two tension disks, tension spring and nut. No release pin or set screw as never had them. Tension release comes with lever pulling back on tension disks and assembly screws into hole on machine. Has rust tarnish but should come clean with minor work. Price includes shipping to lower 48, return for refund if fails on your machine.