ProVape would have had that information filed away I'd bet. But with them long gone who knows if the company files were saved or where they are. In 2013 and early 2014 I ran the Provari forums with the most knowledgeable Provari customers on ECF daily, but I don't remember any of them having the ability to determine an exact production date of their
mods by serial number. Some of them had some detailed specifics about some of them, but AFAIK none of them had put together a comprehensive data base. I have not seen any of those folks on ECF since I came back to it. I also had an 'in' at ProVape, someone who knew more about the company and it's inner works than any of us. We talked often, but he never mentioned having access to that information either.
IOW I knew of no one outside of the company with access to their files or that had a data base like one of mine for another company I can relate. So I doubt you will ever come up with its MFG date.
FWIW, in a couple of other interest specific manufacturers forums I ran for many years I was 'the' Guru of those forums because I had done business with the highlighted company from their birth in he 1960's, owned more of their products than anyone else, had used them longer than anyone else, knew the powers to be there personally, talked to them all the time and attended some trade shows with them.... and I had built a data base of the exact specs of the models they made as they came out from day one and what/when if they were changed over the years... and the serial number ranges a of each model by which quarter of each year they were made. A plant fire destroyed most of the company records in the 1990's, so I had the only surviving complete data base of that company after that up to when I stopped adding to it when the company was sold to a giant (who wanted their manufacturing patents) that I wouldn't do business with. There is another similar company I assembled the most complete data base for as well, but that data base is only a shadow of that other massive one I have.