Here are 4 clear triangular shaped covered glass dished . The bottom is embossed MACY Pat No 88111 Made In U.S.A. FOOD SAVER S-30.
They are in good vintage condition with no cracks or chips and bubbles noted randomly. Circa 1930's era. Canton Glass Company. Contained a set of 6 for use in a lazy susan / suzan Hoosier or refrigerator
While researching It seems these glass dishes are not often found in the secondary market .