While taking the Cluny de Brioude online workshop with Josee Poupart, we learned about this is an old TV segment on the bobbin lace surgical ligaments developed at the Atelier Conservatoire National de la Dentelle du Puy. It is in French, but you can turn on the close-captions, and then in the settings, ask to auto-translate the captions to English.
Des ligaments en dentelles du Puy
Some of the members of the online workshop are trying to find out exactly what the new stitch is that was developed specifically to make this lace.
Jill