Francotte registered the trademark Monopole Oct, 12, 1894. Monopole translates to Monopoly.

This is from Littlegun


http://www.littlegun.be/arme%20belge/art...chasse%20gb.htm

The Anchor is an anchor with the initials AF woven around it. It is also a Francotte trademark. Nothing to do with the sea or the navy.

Here is a Francotte Monopole sxs:
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=208942970

I would place the gun between 1894 (when he registered the trade mark) and 1914. From 1914 to 1919 nothing was coming out of Liege, unless this can be traced a to high ranking German official.

Pete