For the mark often seen on Algerian guns see~
http://www.vikingsword.com/vb/showth...ALGERIAN+STAMP at # 149 photos 1 and 2. and #176 photos 1 and 2.
Also
http://www.vikingsword.com/vb/showth...GERIAN+STAMP#3 photo 5.
One of the marks was found on a sword and one on an Algerian gun...Identical.
Both placed below for reference.