This vintage two-piece set features a Ther-Mo-Pack insulated food and beverage carrier manufactured by Lockwood Products of Chicago, Illinois. The outer canister is constructed of galvanized metal with a spangled crystalline finish and includes a red and silver lithographed label on the front. The label is transcribed as follows: THER-MO-PACK, HOLDS QUART FRUIT JAR, KEEPS FOOD OR DRINK HOT OR COLD FOR HOURS, CONVERTS YOUR EMPTY FRUIT JAR INTO A VACUUM JAR, LOCKWOOD PRODUCTS, CHICAGO, U.S.A. The set includes a clear glass quart jar with an embossed Ball script logo and Wide Mouth marking. The metal canister contains an internal composite insulation layer designed to house the glass jar, effectively creating an insulated vacuum-style container.