

Interesting glass laying technic
Hello, new collector here. I found those interesting champagne flutes and wanted to share if anyone knew about how the red inlay/filament is placed on the glass or how this technic is called. Bonus points for glass or maker information 😉
Image search does not work well. Only got some vases results. I know some German glass maker used to make vases like this, either transparent or more nacre or opaline. Always in an organic way like this, did not see blue or green much. The red part looks like veins retaining the glass.
Bois&chiffons was a reseller in 2005 but is closing now. Curious about who does it on the other side of the pond and how.
In any case thanks for your help.
Have a great day!