Identify these grips? For 1911 bullseye gun

[boisepaw]

Anyone want to take a shot at identifying these grips? I know that they have been fairly common on 1911’s used in bullseye competitions. Herrett maybe?

I’ve had ‘em for well over a decade and never used ’em. So time to figure out what I have and sell ‘em.

 

[TheOriginalMexicanBob]

Any numbers or markings on the backsides?

 

[boisepaw]

Any numbers or markings on the backsides?

Unfortunately...no. I've gone over them carefully and can't find any identifying marks.