To our great delight, Jessica Grimm, fellow archaeologist and professional embroideress, has agreed to do some testing of the membrane silver threads we made. 

(Jessica also teaches embroidery, both in-person and online. Do check out her page if you're interested!

Silver membrane threads, still on their spool. You can see there's gaps in between the coils, which seems to be pretty usual in the originals as well - but I can definitely improve the regularity and evenness of both cutting width and winding!

And... we got first results! One of the sample batches was, as expected, not holding up too well, but shed some silver. (I think we messed up with that membrane, as there was glue on it....) Another one also shed some silver - that was a sample silvered with no glue at all. The others all held up rather well, and the test also showed that these threads are much more supple than if they were done with solid metal strips. (Also not entirely unexpected, but then you never know...)

That is a very nice result to get before the conference in Belfast. Now I'll have to think about how to shoehorn in one more sentence without going over time!