This is on a 76 75HP Evinrude, trying to figure out what the pitch and diameter are on this and haven't had any luck on what I can make out for a number on this prop.
There seems to be more number opposite Michigan May be the actual diameter and pitch.Pitch is the key number .
You can measure diameter from the center of the bore to the tip of a blade and double the number.
If all else fails you can take it to a prop shop and have it measured.
