[pjv911]

I am trying to establish if this cap is a valuable piece of Porsche history or just a part modified to work for a Porsche twin plug application.
Who actually manufactured the part is irrelevant.
Bluecille is the only one that understands my question.

Here is an example.
I have a set of 1972 911S sport seats (Recaro made them for Porsche). They came with the car when I purchased it a few years ago.
Then I come on this forum to ask if they are authentic Porsche sport seats.
If you wanted to get silly you could say "Porsche didn't make those" "Not Porsche parts". And you would be correct but at the same time you will have completely missed the question.
If the seats were OE supplied by Porsche and on the cars order sheet when purchased new but made by Recaro then on paper I suppose they are not real Porsche sport seats?
Now consider that aftermarket companies now produce replicas of early sport seats. Do the replica sport seats have the same collectors value?

This distributor cap I have here has been sitting unused for about 12 years and doing me no good.
I plan to put it for sale and would like to know if its an authentic OE supplied 45 year old part with substantial value or just a mass produced cap that can be used as a cheap replacement alternative?