Check out our other auctions and "The Old Car Parts Store" for similar items that have been in storage for the past 40+ years. Here is a VINTAGE GRAYMARINE RPM TACH & GAUGES. The backside of the brass housing is stamped AC DIV. The main flaw is what appears to be a light oil film on the underside of the glass lens making it a bit cloudy when viewing the instruments.
This could be cleaned and would improve dramatically with a bit of time and effort to take it apart. The face plate has some small rust spots here and there but nothing offensive. The input shaft / gear drive spins by hand and gives movement to the RPM needle (not seized). Overall, a very rare and hard to find gauge cluster with excellent potential. Professional packaging guaranteed (see our feedback).The item "VINTAGE GRAYMARINE RPM TACH & GAUGES OLD BOAT / MARINE AC DIV. GMC RAT ROD" is in sale since Monday, November 30, 2015. This item is in the category "eBay Motors\Parts & Accessories\Boat Parts\Other".
The seller is "19fatboy66" and is located in Saranac Lake, New York. This item can be shipped worldwide.