what alloy aluminum + thickness did Zagato use ?

[DaveA]

Hi

I was just wondering what alloy Zagato used when building the double bubbles , 

and were all the panels the same thickness ?

Did they have english wheels then , or  was it all hand work with hammers, sand bags and tree stumps !

Are there any factory photos showing the body construction ?

It just seems like it would have taken 100s of hours to build a body by hand , 
  they were building   a couple a week plus whatever other  cars they were working on ,

anyone know ?

Dave

[yhprum]

BTT