Hello Sinisa,
There was another photo (Downloaded in October 2014) of the said machine. Here is its back. Not exactly the same writing but obviously the same meaning.
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Nothing like that in the area except "Champagne" or "Champigneul", i.e. Champigneul-Champagne which is close to Montmort-Lucy.
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I thought it would be very difficult for me to understand a Champagne peasant speaking French in 1940.... I just imagine for a German!..
Left that after that photo, my contacts did confirm it was Montmort-Lucy. Something like a "Gendarmerie" report I guess ...
To be followed ...
Regards, Franck.