Vintage Singer class 66 four hole sewing machine bobbins. Will fit the model 66, 99, 101, 185, 192, 201, 328, 401, 403, 411, 501, 503, etc. You will receive four bobbins, multiple lots may be available. Very good vintage condition, may have a minor dark spot or two similar to examples shown, rust free. All thread has been removed. Singer part #32522