Congrats, Ferret...
Looks like a winner. Any grips made for a Gov't 1911 will fit a Scoremaster, and as such it would not be surprizing for a previous owner to have purchased an additional pair of wood grips.
It also appears that a previous owner added the bumper to the bottom of the magazine, and possibly the extended slide stop.
I'm curious, having seen some New Detonics Scoremasters that have only one recoil spring, (original Scoremasters had two), and some New Detonics Servicemasters that have only two recoil springs, (original Servicemasters had three);... How many recoil springs are in your "new" Scoremaster?
Thanks.