I found the pics I took at the factory. It was PSP IX (2016?)
It's a different head stock than the one on Reverb. It looks better executed.
The Reverb 150 is located in Muscle Shoals which is about 30 minutes from Moulton, JP's home town, so it's possible JP received it after his retirement and his family let it go. The shop that has it for sale also had a Terminator for sale a couple of years ago.
I picked up a HFT-480 from a guy in Moulton, about an hour from me, a while back who told me his father was friends with JP and he got the guitar from him.
It's not inconceivable that head stocks were in in the works before JP left.
Anyway, a bit of a caffeine induce ramble.
Here's the shots from PSP