Yes, indeed, the colour is marigold (i.e. clear base glass with a marigold iridescence).
The piece is known as "My Lady's Powder Bowl" (also Milady's Powder Bowl). We have tried for many years to place this item to a maker - as yet unsuccessfully. I am sure it is a European piece, but the maker remains unconfirmed.
PS I've often "felt" that Walther might be the maker .... but no evidence yet!