similar described as Holmegaard and as Murano so I take it it is an either or...
or many many others ...including Alsterfors, Moretti, Unknown Italian, & Chinese.
See many threads here on "cased over white" "Holmegaard" etc. Use search to find them.
Holmegaard ....very unlikely I think.
Murano ? No definitely not. Italian poss.