How unique was this method?

[collectingfool]

I have an unidentified, unmarked propeller. I understand getting details will be near impossible. My question is more of a general question. One of the reasons I bought it was because I liked the metal sheathing on the edges:



The only other two props I've seen with that type of edge are these two. One identified as Curtiss, one as Wright:

http://www.woodenpropeller.com/SE_5A.html

http://www.woodenpropeller.com/clas10.html

So, my question is, was this "scalloped edge" a unique thing or did many different companies do it? Do I have any shot at narrowing down who made it, what for or a time frame because of this edge or should I just give up?

[Dave]

No, it wasn't uncommon on a number of propellers. I've seen several modern Hartzell props with scalloped edges, and this one of mine also has them.

There's certainly nothing so unique about it that it would allow its identification on that basis.

That transverse line of apparent color change right where the sheathing begins may indicate that there had been fabric underneath. Look very closely at the metal edges for remanants of fiber underneath that might confirm that.

[collectingfool]

Thanks Dave. I know it's a horribly lit picture but in person you can definitely see the line where the covering once was on both sides. Don't know what that tells me though other than the fact that there was once canvas there.

[Dave]

Don't know what that tells me though other than the fact that there was once canvas there.

That's about it . . .