Propeller from OGMA? From a de Havilland?

[fprevi]

I have, since some years, a wonderful wooden propeller. After previous unsuccessful attempts at identifying the propeller, I recently restarted in my search.
The propeller reports, on the hub, the writing “O.G.M.A.”, which might refer to the company OGMA (http://en.wikipedia.org/wiki/OGMA) the national aerospace company of Portugal.

On one side of the hub, there is:
O.G.M.A.
SERTE-22
NO - 16
The writings on the hub are difficult to read (I fear they might have been sandpapered). I am not sure about the correctness and the completeness of the writing. In particular, there is a wide gap between NO and 16.
On the other side of the hub, there is
GIPSY-II-III
MAJOR

The propeller has a diameter of 192 cm (6 ft 6 in). It has a central hole of 7 cm (2.7 in) diameter with 8 surrounding holes.
The propeller is made of wood and its leading edge is covered with a brass strip.

According to my researches, the propeller might come from a de Havilland Canada plane equipped with a Gipsy or Gipsy major plane. It might be one of the planes (Chipmunks) produced by OGMA.

Is anybody able to help me?
Thank you!

[Dave]

Probably not able to help, especially when the numbers can't be determined.

But here's a list of the British propellers, one of which probably matches yours.

[fprevi]

Hello Dave,
thanks for the link.
I'm quite sure the propeller was manufactured by the Portuguese company OGMA. The company still exists. I sent a mail but I do not really expect a reply... but who knows
By the way, I think it is SERIE and not SERTE.

Thanks

Francesco

[fprevi]

I was pleasantly surprised when the manufacturer replied! A person there sent me a picture of a propeller they have, matching the one I have (except for serie number and part n.).
Now I asked for additional info (year, machine...).

That was really a nice surprise

[fprevi]

Still searching

Some updates...
The company said they do not have document about the "old stuff". They said they've transferred everything to the Portuguese air museum.
I wrote the museum. They seems not to have any material (did they just trash the documentation?) but I'm still in contact... maybe something will come up.