THE PERSON I BOUGHT THIS FROM AT AN ESTATE SALE CLAIMED IT WAS FROM THE 1920'S OR THE 1930'S... I HAVE NO INFORMATION TO CONFIRM THIS OUTSIDE OF THE MANUFACTURES NAME ON THE LABEL... WITH THAT SAID, THIS IS WHAT WE HAVE... VINTAGE THER-MO-PACK THAT CAN BE USED EITHER AS A HOT OR COLD FOOD OR DRINK THERMOS... IT'S A UNIQUE THERMOS/CONTAINER THAT'S DESIGNED TO HOLD A QUART FRUIT JAR TO KEEP FOOD OR DRINK EITHER HOT OR COLD FOR HOURS... CONVERTS YOUR EMPTY FRUIT JAR INTO A VACUUM JAR... MANUFACTURED BY LAWRENCE A. LOCKWOOD CO. CHICAGO, ILLINOIS .
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