Prop Identification

[OCboat]

Hi. I'm having a difficult time identifying the prop on my 1969 Merc 650. The only numbers on the prop are a 1 and then right underneath the 1 is 863R. Anyone have any idea on who the manufacturer might be? Thanks.

Edit: After scraping off some grease on the hub, I discovered that it is a Michigan prop but the only other identifying marks were PM 80. Any ideas on diameter and pitch?

 

[WillyBWright]

Re: Prop Identification

E-mail miwheel.com and ask what a PM 80 is. I asked about a few old ones I had. They were very prompt with the answers.