This is a French art glass vase, unsigned, and the maker is the Sèvres crystal glass factory. The date is the 19th century, circa 1885 to 1890.
You can view similar unsigned Sèvres glass in the book by Giuseppe Cappe, “Le Génie Verrier de L’Europe” on pages 416 and 419. This type of glass was originally developed by Rousseau and possibly Leveille.
The vase is small and is 5 3/8” high. The glass is clear with round streaks and blobs of different colors contained within the glass, like dark oxblood burgundy, rust red and gray-white. There is a neck with gold trim and a gold overlay design on the front.
The pontil is round and polished smooth. The rim is polished flat.
Here are the flaws. 1)There is wear to the gold overlay pattern of leaves and flowers. 2)The inside bottom of the vase shows water residue and this can be difficult to get cleaned, but possible. 3)The inside neck has an abrasion and the glass is slightly shattered. The inside edge has irregular slivered chips, so that the glass is rough to the touch. 4)There is one small abrasion on the outside side of the vase and it can be felt as a slightly rough area to the touch. 5)There is wear to the gold trim around the neck.