Looking at the catalogue in Christine's post above, page 8, top left quadrant, what appears to be the same bowl is shown as Walther Neptun. Unless evidence is elsewhere to the contrary, I'd think that's a pretty good match.
Pamela's Nepun green set looks to be two different greens on my screen - is one uranium and one not I wonder, or is it just my screen?
Marcus' comment was based on the similarity to known Czech pieces.