This item is a vintage Propeller Shaft Revolution Indicator that was manufactured by the The Electric Tachometer Corporation, Philadelphia, PA. Which was incorporated in 1933. It is Type: 1C-1-F and Ser. No. 6210. It was Contracted in May 1953 during the early years of the Cold War.
“The purpose of the propeller shaft revolution indicator and counter system is to transmit indications of propeller rpm and total revolutions from the propeller shafts to the control station in the maneuvering room.” click here for source.
The indicators face plate measures 10 3/4 inches by 11 1/2 inches. The bottom housing is 8 1/2 by 10 1/4 the connector at the bottom extends out 1 inch. it weights 27 pounds. The housing is solid brass, face is polished and the bottom has the original paint covering the brass.
This Revolution Indicator came off of an Kinsmen Fleet Great Lakes freighter owned by the Stienbrenner family and has been in a private collection for many years.
This item may also be particularly interesting for designers with a Steam Punk design in mind. Match this item with some of our other unique nautical antiques here!
Note: There is still original paint on the wall mounted part of the revolution indicator.
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