As Sue said, the eBay photos appear to show conflicting colours. If I was interested in that item, I would make sure that I have seen a fresh set of photos, preferably taken in daylight.
As it stands, Gary's link to the WMF bowl does tie in well with the colours in some of the eBay images. But in the eBay images that show a red, rather than orange, colour, there appears to be a strong similarity with the red in one of my Salvador Ysart Inkwells which may well be Ysart Brothers, "Vasart" but perhaps using an original Monart red.