Tachometer Type E-4 Weston 545 A-20 Havoc H-21 Weston model 301

Weston model 301

This is a fine example of an early WWII-era German Wendezeiger (Turn and Bank) Fl 22402

and all components may not be present

with an antenna wire connect from the top of mast to the top of the tail

but utilizes an electro-magnetic compensation system

Tachometer Type E-4 Weston 545 A-20 Havoc H-21 Weston model 301Here is a WW2 vintage electrical Tachometer measuring up to 3500 RPM. This is the type used on the Douglas A 20 Havoc attack bomber (see photo of instrument location on the A 20 cockpit panel as illustrated in its flight manual) as well as the C 45 Expeditor transport (both aircraft used 2 each). The anchor symbol of the US Navy appears on the rear of the instrument, so it may have been used in an aircraft of the US Navy. Measures 3. 25 inches