I have a3/15/1966 build 912 I was wondering if anyone new if this early tank had under coating with the light grey or was just painted grey and had the desk pad emergency tire cover over it?
I understand that this topic has been discussed a lot here but I really have only a couple of references
It seems that that Porsche started using a SKS type of coating in 1966 but I am unsure of when .
Does anyone know for sure when the undercoating was first applied on the gas tank?

I know that I am talking about a 912 which is not a 911 bit you guys seems to know your stuff.


Thanks in advance

Doug