That was a mission on its own!
Luckily one of the amazing members of this forum, Wheels, put me on the right track
He said the last he heard off was that Charles Williams had access to the records.
So I googled him and after a while, I found the above-named gentleman running a business called
Safari Adventures Worldwide. So I took a chance and emailed him
He emailed me back and informed me that the WJ Jeffery records were now owned and held by the Friedkin Group, based out of Houston, Texas
He took the liberty to shoot off an email on my behalf to the president of the company about my inquiry!
So naturally, I assumed that I would never hear anything from them, them being a large corporation. I was dead wrong, the CEO took the time to send the email onwards to a Mary Warley from the Friedkin group and she, in turn, took the time to do some digging
She supplied me with a photo of the ledger!
I asked her if they could supply any more info than the photo and she send my request to their contact in the UK.
Mr. Richard Arnison-Newgass promptly replied via email. Unfortunately, the only info available to him was the production ledger and not the sale ledger.
No official reports(certificates) from the company are at this stage forthcoming but he did mention, unlike most of the other gun companies they don't charge any fees looking into these types of enquires. All the ledgers are kept in the US, so he was not really able to physically access the ledgers.
The whole process was made painless due to the amazing people that were willing to help a complete stranger dig up some info on an old gun! I love our community of gun enthusiasts!
If anyone is interested in getting the email addresses of the people that may give you more info on Jeffery Firearms just shoot me a PM and I will forward the details
Cheers
Frederik