Just when you thought the finds from Lengberg couldn't get more revolutionary... well, they've done it again. Beatrix Nutz has recently posted an article on academia.edu describing several wrapped-thread buttons which have been dated to the 15th Century. This pushes back the dating for this sort of buttons from the 17th Century to the 15th Century, although there is one other previously described 15th Century wrapped-thread button.
Many thanks to Cathy Raymond at Loose Threads for bringing my attention to this article.
