About the Sparklers,i'm not sure where they have been made,my feeling is that they have been made in France.
I have not seen them in original packaging marked Germany.
I've seen them in French packaging.
In the article about Veiligglas,i've read that no marbles were made in Germany after the war,that in Europe marbles were made only in France and Netherlands.
When i talk to people in France who have knowledge about glass,they tell me that after WW11 machien made marbles have been made in France,so......
The most confusing thing about Sparklers is ,there'more than one type.
Pictures not mine