you can send them in and we can put them on the pitch and rake indicator .we can then tell you what they are ,are far as being custom made we would know more when the props are in our hands and them we could give you our opinion.

I just checked my props, the markings on it just say 7291.

BCK there's a propeller pitch guage #950-900 available from www.land-and-sea.com for about $35.

Kaama surface drives have the same prop shaft spec's as the old Merc small shaft 6" hub speed masters, some speedy ll's, lll's and IV's. Kaama also made props with this some hub. You may have a Kaama prop, it had been a while since I had my Kaama's and I can't remember the markings on the prop.

I think CT would stand for Compu-Tech. That was the company that made the props for Kaama.