OMC Propeller. Probably from a V6 OMC stern drive type of boat.
A little rough at the edges but still a good secondary or backup propeller for the price.
Propeller diameter and pitch: 15 x 17
Turn direction (viewed from the rear): RH / Right Hand / Clockwise
Blades: 3
Blade rake angle: 45 degrees (approximate)
Blade radius (from center of bore hole) : 7.5"
Blade total diameter: 15"
Metal of blades and cylinder: non-ferrous, probably aluminum
Metal of Bore hole: probably brass
Rubber harmonic balancer / shock damper: present between Bore hole and Mounting Hub