Coaster--molded glass with thick rim and base, probably used for furniture leg stabilization. Good condition with some scratches and wear on the outside bottom. Impressed on the bottom of the coaster is the letter A surmounted by a letter H, probably indicating the manufacturer.
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Furniture
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Food Service T & E, Coasters (containers), City of Industry (Calif.)--Homestead Museum--La Casa Nueva, Coasters (Trays)