This is a Pachmayr Grip Panel, model 61011.
G-10 material is a fiberglass based epoxy resin laminate. It is an extremely tough and durable material that is impervious to moisture" weather or chemicals" making it a perfect material for handgun grips. The multiple layered construction allows the use of different colors to be added to the semi-auto grips" creating attractive patterns as it is machined. Their Pachmayr G-10 Tactical pistol grips are available in two textures" their coarse Grappler pattern or fine checkered" and two color patterns" green/black and grey/black.
Features:
Gray/black grappler finish
Super tough and durable G10 material
Impervious to moisture weather or chemicals;Fits 1911