Hello, the A in a star is the mark of Robert Altermann from Görlitz, active 1879 - 1927. The other mark is to worn to be sure. Check here
http://www.925-1000.com/Fgerman_marks_a1884_2.html" onclick="window.open(this.href);return false;
under Lutz und Weiss for a possible match. They used various kinds of the shield, all with letters L and W ligated. Best wishes, Bahner