Christine - I agree with all you say. So many "look-alike" patterns are in existence, and often there may be little differences but we don't actually notice them. It's not made any easier either, when some makers actually altered a design to fit a specific shape. For example, Brockwitz used their "Curved Star" (they called it "Zurich") on a host of different shapes, and totally altered the motifs and proportions etc. yet all the shapes and pattern variants were classed as "Zurich".
We might actually be on the trail of where the Diamond Cut design originated, thanks to something that our Cathy B has uncovered. More on this as it unfolds...
Cathy - many thanks. Good point about that little vase, I guess we need to start doing some more thinking
Tony - cheers! The Hortensja catalogue was discovered by an English couple who were living in Poland. We aim to put it into the public domain (may take a little bit of time to get it all done, but it's on its way).
Lynne - many thanks for your kind words.
Pamela - I'm not completely sure how to answer you. I must have confused you somehow, and my apologies (the language problem). I believe that your pieces are "Pinwheel" - and are Hortensja.