The Q & A on Tyrian led to this further questioning
I am very appreciative of Beth’s response to my question regarding Tyrian, however, she really only dismissed that not everything with an applied border is Tyrian. My question is, using the example I gave of the “Tiffany Blue” vase in Dimitroff’s book, how does it differ from a true Tyrian piece, and were I to find one at a yard sale, in the bottom of a box of beanie babies, lucky me, and it was not signed “Tyrian,” how would I be able to determine if it was Tyrian or simply a decorated Aurene. I had a fellow collector/dealer who has been in the business for, well, longer than I have been living, tell me he still does not know the difference between a Tyrian and a decorated Aurene piece, and he is a very astute collector.

Beth Shaut answers further
Tyrian in my experience do not have the appearance of Blue or Gold Aurene in the finish as I said they tend to be a Green Jade to plumb in color the also have some mottalling to the coloration unlike the Aurenes which tend to have specific all over color. Tyrian does have added decoration in Gold Aurene such as leaves and vining or if a piece has a border you may find gold and possible blue in that decoration. We have one that is not iridized but signed which is very uncommon. I hope that this clears up some of your question. In the Gardner book, The Glass of Frederick Carder, on color plate XII, they show 4 colored photos of the Tyrian that give an Idea of the coloration to these pieces.

Some more auction pictures