My drawing of the Cosgrave Code Siren in Jerome Arizona. Some info about the siren: The siren's original name before it's patents were sold to Gamewell was the Cosgrave Code Siren, but Gamewell changed the name to the Codewell after they acquired the patents. It was capable of producing a pulsed signal of what sounds like a wind up but no wind down, which would be used by fire departments for fire calls. There is one unit planned for restoration in private possession, but this particular unit remains in Jerome, and is no longer functional due to the breaker box being damaged from a lightning strike.
Adam Pollak for the reference image. Drawing by by me, AKA @Tornado-Siren If someone could make a synth for this that be pretty nice, the port ratio is 12/12/12 with a 5HP motor