If you can't find a G&H, perhaps one of my Jaeger bases will work. The dovetails appear to be the same angles and dimensions in at least one or two cases, and I have a blank oversize base that could probably be cut down slightly to fit your mount snugly. PM me if interested, I'll let you try it for free to see if you want it.
Regards, Joe


You can lead a man to logic but you can't make him think. NRA Life since 1976. God bless America!