Defiance Spark Plugs Double-Sided Flanged Sign rollodor This example remains structurally sound

This example remains structurally sound

first seen in 1919

White Company was founded by Orlando C

A richly worked frieze encircles the top with lunette carving at the edge over punch‑ground scrollwork and cabochon medallions

and oscillating as intended

Defiance Spark Plugs Double-Sided Flanged Sign rollodor This example remains structurally soundc. 1930s 1940s; Defiance Spark Plugs, Inc. Toledo, OH Double sided flanged tin advertising sign for Defiance Spark Plugs, featuring the bold slogan "Predetermined Quality" above the company's signature plug illustration. The sign's deep orange background, contrasted with black and cream lettering, embodies classic prewar industrial design and early automotive branding. The flanged edge allowed for perpendicular mounting outside service stations and