Outward wise his looks like the one on the distributor on the right. But internally it looks like none pictured. It has a square internal shape I am not familiar with.
His car is a "Very" early production 69 that has many 68 attributes. Quite awesome it is! Are there other units liked described?
Well, here is somebody that knows my car as well as me! I am sure I know who you are, because only two or three guys have seen my original distributor, which is indeed the one on the right. The vacuum unit had a broken diaphram, so I opened it up, thought I fixed it, soldered it back together, and tried to replate it, but with bad results. In the past I looked for another vacuum unit on ebay with no success, however yesterday I tried again and I found the right one for my engine and distributor number too, so for now I am happy. We'll see when I get the part, an NOS 'new' unit. Thank you all for your answer, keep your fingers crossed!