OEM used J model 1926-29 ( can be used on most all years J ) jiffy leg bracket. Has both set screws broken off in casting but are not hard metal so they will drill and tap reasonably. Doesn’t appear exceptionally worn, just crusty. Replicant Metals has replacement set screws and NEW indexing lock plates available at additional cost, please ask?
ALWAYS, in all correspondence PLEASE include your complete name, telephone number and email address so I can respond promptly.