I think I commented on these somewhere else.
However........
The grips on the lower gun appear to have a nickel plated screw, which is wrong for a blued gun.
They do have the lighter, rather orange-blond color of later model grips.
BOTH grips appear to have just about zero grain figure, and I'm not certain these are in fact genuine Colt. Even in the later days, Colt grips were American Walnut and had a least some typical walnut grain, if not any figure.
I'd want to see these in person before making definite statements, but I'm wondering if these are Colt factory.
From the pictures, both appear to have that very non-grain look of a hardwood with a stain-finish over it.
"Usually" fake Colt grips have brass screws and screw bushings, usually on both sides, and genuine Colt have blued or nickel steel screws with a steel bushing only on the right grip.
In short, I'm just not sure about these.