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Re: Fitz and Floyd Art Nouveau
Your goblets are called Fitz & Floyd Iridescent Nymph goblets (Iridescent referring to the shimmery, rainbow type coloring). The goblets are a retired piece, so are harder to find. The MCML XXVIII is the date of manufacture in Roman numerals so yours were made in 1978. There are some for sale on Ebay right now and they are asking $100 for 4 of them.