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Vintage Master Mfg Company oil jar, one quart capacity with metal spout.

Here are some of the markings on the jar and spout:

Spout: The Master MFG Co., Litchfield Ill, Patd. Sept. 14, 1926
Near the top of the glass: "Fill To Line"
In embossed square: Mass 0-11-B Seal
"One Liquid Quart" embossed in the center of jar
Near the base: "PA. Serial M-24", "S4 MiNN", "N.C. M 10 Approved" , and Master MFG CO. Litchfield, ILL

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