It will be an ambitious project, but I will be rebuilding Franc's bike hopefully back to it's original supercharged specification........ My understanding was that Zoller seemed to cast the factory logo of sorts into the main blower casing. This seems to be the case with the ones fitted to MG's from pictures of ones I've seen. It would be very handy to have some factory spec pictures of the blower and drive housings.......We will probably make all the parts ourselves.......Rodney Brown, has kindly offered to assist here with all the castings needed........probably 3 for the blower and 2 for the drive housing. From the pictures i have studied, one item that looks a bit scary is the tiny oil pump mounted on the left side of the blower to inject a small metered amount of oil into the air intake to lube the rotor veins.......These were probably made of carbon, and would readily Gaul up the inner case wall if no lubrication was provided........Not unlike a rotary engine,ran without any lubricating oil in the fuel mix. Thanks to all for the pics, perhaps someone may have some info hiding somewhere.......It should be a fun if not challenging project, something different anyway. Making up that rather special oil tank in stainless............Hmmmm. Cheers for now.......... Greg.