Orange / blue marble vase (signed?) old glass paste

Old vase in colored glass paste with blue, marble effect. Serted neck. Very good condition. It seems below to be marked as a d (capitalized) and on the edge of the bottom which is smooth, appears very little distinctly or an old signature or an effect of irregular appearance (when one passes the finger, one feels like an irregularity on the glass paste) but impossible to decipher. Height 21.5 cm. Neck diameter 6.5 cm. Foot diameter 6 cm.

Ref. : T4EJKHAT