Have a Mercury prop gave to me but unsure what it fits or the pitch. Any help is appreciated. Number on the prop is 48-73138A11

Is there a number stamped near the base of one the blades?

In the area circled.

Here's a picture of my prop if that helps.

the A11 indicates it's a relatively old prop. it's superceded to pn 48-73138A45 which is a 10.25x14p
25-60hp engines.

to get more details.. you should call Josh at Steves Custom Props. ask him to look it up in the historical propeller guide. he
has one because i had it forever. 903-763-0200.

Aluminum, 11P, Mercury Black Max series prop.

Take it to Mcgills in Lewisville, they can tell you what it fits and measure the pitch...