This Davidson bulb bowl is the only glass example I know. I don't know if it's UV-reactive as I put bulbs in it and put it in the cellar as soon as I got it but I will check it when the bulbs are ready to come into the light, hopefully in December.
the registration number on the lid, RD 809129
after the bulbs in it were finished and I was able to photograph it under UV light I would say it has little or no uranium, some reaction from other components in the glass?
the bulb bowl with large hyacinth bulbs
from my bulb forcing blog, the Davidson bulb bowl with hyacinths in bloom
ceramic hyacinth bulb bowls
the bowls, above with hyacinth bulbs and below, are extremely similar in size, the left bowl is 17 cm in diameter, the right bowl is 17.5 cm in diameter
and extremely similar in design
the bowls, aside from a slight difference in size, are marked differently on the base, the small gold sticker on the left bowl also says "Made in China", as marked on the right bowl
the lids below show a slight difference in size
Mottahedeh bulb bowl
Mottahedeh bulb bowl without bulbs, below, unlike the other bulb bowls this does not have a removable lid, it is all one piece, 17 cm wide.
Mottahedeh bulb bowl base
Past Times hyacinth bulb bowl
Past Times bulb bowl without bulbs, 17.5 cm wide
base of the Past Times bulb bowl
large unmarked bulb bowl, 20.5 cm wide
large unmarked bulb bowl base
the crocus and hyacinth bulb bowls below differ in the size of the holes; being smaller the crocus bowl holds 7 bulbs, the hyacinth one holding larger bulbs only 5 bulbs
Crocus bowl base, below, diameter of the crocus bowl is 16 cm.