Rare unique antique brass instrument signed H. Morin

[ijimenez]

Hi
I have been trying to find out any reference to this strange instrument. I have searched the internet without success.
I can only assume that the purpose of this instrument is for water current meter or flow measurement but I am nor sure.
As you can see in the pics, it has a propeller connected to two dials. By pulling the cord, the propeller is connected/disconnected to the gears which record the revolutions.

The instrument is signed: H. Morin 3 Rue Boursault, Paris.

I am aware that H. Morin is a well known French brand for antique surveying instruments and engineering instruments but I couldn’t find nothing like the one I have.
I would appreciate any help or reference to identify this instrument and also any price appraisal you may have.

Thanks/IJ

[mart]

Can you tell us everything that  is written on it !! Morin also made mining instruments !! Could be something for that !! Just need to know all that is written on it !! And numbers if any !!

[talesofthesevenseas]

Wow, really interesting! Yes please provide details, details, details!

[JoshandLila]

very cool!! looks like a mechanical whirligig lol

[ssanman12]

H. Morin also did a lot of work with air volume and flow. This looks like an instrument that would be mounted to a tripod (or transit pole) and would face into the wind using the fins on the back. The wind would turn the gears and you will notice the numbers on the side of the gears and a small pointer on each to read the revolutions or volume calibration (do not know the scale). The turning gears also lift the mechanical lever at some point.
This is a very interesting piece for an scientific instrument collector since It is made by Morin and I have never seen it in one of his books.

[ijimenez]

Hi,

Sorry but there is no more information. Only says:

H. Morin 3 Rue Boursault, Paris

without any number or code. I could add more pics if you so wish.

The instrument is 19 inches long (49 cm).

I doubt this instrument is for wind measurement or an anemometer. The propeller is too small and would not rotate.

thanks/IJ

[JoshandLila]

just the fact that it has the propeller and the fins tells me it had to be something for wind speed and or direction though

[mart]

I don`t know,, I am thinking water volume flow meter too !! 

[cogar]

A wind instrument needs a pivot connection so that it can turn to face the direcction of the wind.