Rislone Oil Additive Thermometer

Made in U.S.A. 1949. Single-sided tin (SST). Featuring the product along with a money back guarantee and a call to action for consumers to "Use Rislone NOW". Rislone was marketed intensely as an additive—specifically coined "The Oil Alloy". It was formulated to blend with standard engine oil to dissolve sludge, free sticky valves, and improve compression. Marked, "DONASCO 2-49" lower right edge. Authenticated by The Authentication Company (TAC #501889). All items are guaranteed authentic by Miller & Miller Auctions. All purchases are eligible for free delivery to the Winter 2026 Dixie Gas Show on December 4th. From the Barry Yorgason Collection.

Estimación:€309.99

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