heres a few of mine in the same colour, also got some blue and purple ones.
These dont glow, although, i seem to remember some some do, i think the very large bowl i gave
away to my sister a few years ago, before i knew what it was! glows, i visited it yesterday and
gave it a clean for her
I want to try and swop it one day , cos i want it back now .
They are Jan Beranek Skrdlovice, c 1959, im 99% yours is Skrdlovice,possibly a different range.