Rene Bui nous apporta ses lumieres ainsi en ce 2004-09-25 17:00... :

>>Nice detective work!
>>I'd make a quess about the function of this instrument: I think it's
>>similar to the moderns artificial horizon on today's planes: it shows if
>>the plane is rising, diving or banking.
>>
>>Alain
>>    
>>
>
>
>I think that it is not made for planes but for zepplins ! (maybe in the
>20's)
>
>Rene.
>
For a zepplin, the text would be in german, not french. A zepplin is a 
german dirigeable.

Alain

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