Deco paste and sterling jewellery marked with KP was a mystery until jewellery historian Robin Deutsch decided these wonderful pieces needed to be reunited with their history. Robin discovered a lot about the makers, Knoll and Pregizer, and you can read about it and see beautiful examples of their work here.

I have collected a few pieces over the years, but nothing rivalling Robin’s outstanding collection. Here, a deco sterling and paste waterfall pin; the small round stone at the bottom are not fixed and move with the wearer. I originally bought it to sell but when there were no takers it found a home in my collection.