ex 7x57 SN 375
now in .284 Win, clearly rechambered by Sterna
http://www.naturabuy.fr/Carabine-MAS-occasion-284-Win-item-1762047.html

named Mas Founier this rifle got a new FN/Herstal barrel in 270 Win but if the work was done by or for Fournier is not clear.
very low SN 82 this was another ex 7x57 Mauser http://www.naturabuy.fr/Carabine-MAS-FOURNIER-calibre-270-Win-item-2719656.html