Tiffany Vase?

That's not a Tiffany, trade mark.

Legras - France - c. 1864 - 1930's

Auguste Legras was a glass worker who bought the factory at Saint-Denis, near Paris, in 1864. He knew a great success with his famous enameled colored and  acid engraved glass. In 1897, he bought two others big factories.  His son, Charles Legras, succeed in 1909 and the production was stopped during the WWI.  He reopened in 1919 until 1931 and produced many original new Art Deco works.

Legras & Cie
St Denis, Paris, France (1864 - 1914)
August Jean-Francois Legras. De Varreux. Enamelled and cameo Art Nouveau glass, marked either "Legras", "L & Cie", "Sargel" (Legras backwards), "Leg." (enamelled) or "Mont Joye & Cie". After WWI, merged with Pantin glass works to form Verreries et Cristalleries de St Denis et Pantin Réunies

I wish I could give you a 100% Sold value, or worth value. Prices are so crazy I'm not sure .I guess take the info. you have a come up with a price. and see if you get it..,,Sorry I didn't see the Not for Sale.

maybe this will help someone else..

mont joye  100-150$ vase      not tiffany but still a good quality vase.