Vintage Westinghouse by Hall China Co Butter Dish Yellow USA MCM Kitchen 50s 60s

Vintage Westinghouse by Hall China Co Butter Dish refrigerator dish Canary Yellow USA MCM Kitchen Beautiful condition that fits a whole block not just one stick Note the inside lid has a small chip on the inside (see pics). Also upon very close inspection I can see 2 hairline cracks- I tried to photograph them. One on the corner of the lid and on the base.