Retro Headlamp Glass

[cb4kenco_imp]

I don't know about you but I'm not a great fan of the modern clear headlamp lens glasses used on current bikes and wonder if it's possible to change the glass for something more '70's like i.e. with some pattern and ridges etc.

Here's a picture I found somewhere from the Tokyo Bike Show of a CB1100 with what appears to be a more retro looking glass. Does anyone know if there's a Honda part # for this or similar that would be a direct replacement?

[url=http://s105.photobucket.com/user/keithnolde/media/honda-cb1100ex-headlight_zps2bb2b467.jpg.html]