I try again to correct butchiedogs' list:
STS Zagreb with wineglass in front of a 5 star is NOT German, but formerly Jugoslavia.
Sachsenglas SG in a crown is RADEBERG
a heart shaped SG or AWS is August Walther in Ottendorf/Okrilla Saxonia
none of these are Schwepnitz!
positively identified your Edelweiss as Max Malky
and Streit Rittermarke