Vintage instrument gauge would make an excellent industrial display piece or use on a steampunk piece. There is a manufacturer's mark on the instrument face that reads, "American Radiator Company.", also reads, "Retard, Reg, US Pat. Off. The Ashcroft Mfg. Co., New York." and "Patent Dec. 20, 1910, July 4, 1916, Patents Pending". Overall condition is good with minor scuffs on the glass and wear to the exterior metal casing, but consistent with it's age. I do not know if the instrument works. The gauge measures 3 3/4 inches in diameter and 1 1/2 inches deep. The connector at the bottom measures 1 7/8 inches long. Please purchase this piece with the assumption that it does not work.
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Product code: Vintage American Radiator Company Retard Altitude Gauge Steam top Punk