An authentic brass ship propeller is always a great find, especially if it is in brass.  This one is solid brass and measures about 16 inches from the tip of one blade to the opposite one.  And it measures  about 8 3/4 inches from the center of the hub to the edges of the blades. The hub is 2 inches in diameter.  This authentic brass ship propeller weighs a little over 10 pounds.  We have not found any marks to identify its maker.