Maybe this fellow?
Blake Pratt
Gunsmithing Services – Fog Ammo
Says his true passion is custom stocks a grips.
Just a guess of course. I don't know him or the company.
Very nice looking grips.
I'd guess the checkering was done or at least laid out w/an electric checkering tool like an MMC or similar. Just judging that on the cuts on the thumb rest.
Nothing wrong with that at all (I use one myself), it just places the age sometime after the mid 70's or so when those 'machines' came into use.