group of three matching original c. 1940's american industrial new old stock die cut steel high voltage signs intended for industrial and/or commercial workplaces. the heavy gauge steel signs were fabricated by the ready made sign company, new york city, ny. each sign contains a baked enameled finish with minor surface wear evident. punched or drilled holes in each of the corners are used for mounting purposes. measure 10 x 7 inches. priced individually.