This is an Ducati Ignition Switch for Ducati Bevel 750, 860 and 900 models. This is the large switch that comes with 2 original Ducati keys. NOS part, never used on a motorcycle but it has been stored on a shelf for some more then 40 years, see pictures. Rare part to find these days, specially with 2 original keys. Last one I have. Very nice state, see pictures. 

Ducati roundcase, Imola, Greenframe, SS, SD, GTS, MHR, SSD, Darmah, squarecase, S2, sport, supersport, Borrani, Ceriani, Scarab, Lockheed, Marzocchi, Brembo, monza , diana, mach, mach1, dm250, dm350, dm160, 160, 450, dm450, desmo, desmodromica, elite, elite 200, brembo, 900SD, Mark 3 , mark 2, CEV, 750, 750GT, 860GT, 900GT, MV Agusta 750 America GT SS