Typical Bohemian c1870s:
Pulverized quartz 100 Parts
Carbonate of potash 28 to 32 Parts
Slacked lime 13 to 15 Parts
Oxide of manganese 1 Parts
Arsenic 3 Parts
with some minor variations and mostly sourced locally. Though cheaper Soda was imported. Germany also used lime glass. Most everyone else used soda glass or lead of course.
It was ideal for most decoration, cutting, engraving, etching and enamel. Whereas in France and England soda glass was not so good for cutting and engraving, this gave Bohemia a cost advantage.
Never been able to find out when the switch from Lime to Lead and same soda-lime glass as most everyone else today really happened there.