15 1/2" 13 pitch aluminum OMC prop
 

I was thinking I could donate this prop to the Macojoe boat project but it won't fit.

But I bet I can make it fit. :-)
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For sale used 15 1/2 inch (measured) by 13 pitch (stamped) aluminum OMC prop. Hubbed & complete with nut, spacer, castle washer, and thrust washer.
Came off a 1988 rude 225.
Used, with a few dings, but very usable & it'd make a great spare.
failed posting pics but I could email them.

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Here's the deal, I'll take offers here or by PM, for a week. You win & I send you the prop, you send Macojoe the money, Voila! it fits.

How about some pics?