Last prop boss id

[Geertse]

This one has a very large central bore diameter:
100mm ,hub is 220mm
Markings are:
NF He
also hard to read 12 or 72-10s
That's all I can read
8-bolt holes.
Greetings,

[Bob Gardner]

Geerste,

I think these are French markings.

PM will be able to help.

Bob

[pmdec]

Hi Geertse,

Pictures are mandatory!
- First, it is the easier way to find what is the propeller because the pattern of markings is also a clue, and
- Second, those researches are time consuming and it is fair that in exchange of an identification I can have some pics in my database.

So, pictures = one of each side of the hub (two flat sides and two rounded sides, even if there is no visible marking), large and clear and, for an intact prop, pics of the whole prop and of the decals if they are preserved, even if they are only a shape.

Regards,
PM

[Geertse]

some pictures

[Bob Gardner]

Geerste,

The large central bore suggests it might be for a Gnome Mono in a pusher configuration, but we should wait for Pierre-Michel's advice.

Bob

[pmdec]

Hi,

I can't read anything except NF HE, from which I can tell the prop is French and made between early 1917 and late 1922.
Try larger pics without flash, because it seems there are enough writings to know who made it and for which aircraft/engine the prop was made.

Try the same with your thin laminations prop. With a magnifying glass, look if there is some kind of fabric between the laminations (It is perhaps a French de La Granville prop).

Regards,
PM

[Geertse]

What I can read is
On the side
N254
T2....
Other side
NF HE
On the front
V2-10.....
Maybe this can help you.
Better pictures are almost impossible.
Greetings,