Galand made some top of the line shotgun before WWI.  Charles-Francois 1869-1920 was best known for his pistols, especially the very popular Velodog.  He held 11 patents.  His son Rene Charles took over business.  He held 4 patents of his own.  He ran the business until 1942.  These dates are in question.  Every source I have varies with different dating for them.
Galand guns won many expositions through out Europe in the early 1900's.  He was respected enough that he sat on at least 1 jury to judge the entrants guns.
I seem to remember in my research that Galand had something to with the establishment of the gunmaking school in Liege. 
I have a copy of a Rene Galand catalog circa 1910-1914.  



Here is another I found.
http://www.prices4antiques.com/firearms-...nts-B174276.htm This is from LittleGun, but you must remember Alain is a pistol collector who also documents other Belgian makers.
http://www.littlegun.be/arme%20belge/artisans%20identifies%20g/a%20galand%20gb.htmPete