There is not enough from the markings to date it. The perron means the breech was proofed. The * E can not be used to date it with out other markings. The H is in the wrong spot to be a proof mark, my guess is that is a factory mark left over from the mold that did the stamping.

WR was the mark of Rene Warnant who was active from 1912 to 1956. But, I am not sure that is his mark as it should be in circle.
http://www.littlegun.be/arme%20belge/artisans%20identifies%20t%20w/a%20warnant%20rene%20gb.htm

It was painted brown to hide the stock repair, which drops any collector value. A decent example of a Lefaucheux action. The trigger guard makes it look older than the information at hand so far.

For Belgian proof and trade marks:
http://damascus-barrels.com/bp.html

Pete

http://www.damascus-barrels.com/Movie.html