For sale is a new old stock brass propeller for late 70s thru early 80s OMC Johnson Evinrude 25 hp outboards and mid 80s thru early 90s OMC Johnson Evinrude 28 hp outboards. It is a 13 spline propeller. I am unsure of diameter and pitch - it is not a very aggressive propeller though.
It does have some shelf wear.
If you have any questions, please ask!!