The items in the image are vintage Anchor Hocking Fire-King milk glass covered dishes, also known as Balkan Yogurt Maker containers or refrigerator dishes. These square dishes are made of opaque white milk glass with clear glass lids. They were produced in the mid-century modern era and often came in sets. The dishes and lids may be embossed with "Balkan Yogurt Maker". They are considered collectible items due to their vintage appeal and durability
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