I figure whatever date they recorded it was built to '69 specs. It may well have been built before the doc claims or it could have been built as the doc authenticates in 1970. The factory was not known for meticulous records. I call it a '69 as that is the spec to which it was built. maybe I'm wrong and it is a very unusual car. There are certainly more knowledgeble people than I about this sort of thing but that is my reasoning. I in no way mean to come across as an expert just an owner of 2 '69s.
Current: 69 GTV, 2019 Stelvio, 95 Porsche 968 cab
Past 74 GTV, 69 GTV, 74 Spider