This is an Aprilia Head Light Rim for the MV Agusta 750 America or Moto Guzzi V7 850 T and also fits the Ducati Bevel 750 GT Sport and SS models.  For optic units with the three screw adjustment. Aprilia part# 40852. This rim is original black. Very nice state, see pictures. Also good base for chroming. 

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