Free Westinghouse old style rotary race cover #AAE332 with two mounting screws.  Holds bobbin case on hook with latch.  Should work on many rotary models including: Kenmore 120-491, Kenmore 71, some Free models, Free Westinghouse, New Home, some Eldrige and Elgin and others.  Price includes shipping to lower 48, return for refund if fails for you