Randall Model 11 Alaskan Skinner 4.5". The knife if in good/ very good condition with normal wear from minor use.  It comes with the original sheath.  

The top of the blade in front of the hilt is notched for thumb placement. Brass single hilt. Approximately 4 1/4" - 4 5/8" leather handle. Duralumin butt cap. The original drop-point blade. Designed by Tommy Thompson, noted Alaskan guide, in 1952 for big-game skinning. The point is dropped below the top of the blade to prevent cutting too deeply through skins when used point first.