Émile Gallé - Art nouveau night-light with hearts of Marie acid-etched glass

Pretty art nouveau nightlight by Émile Gallé, Établissement Gallé, in acid-etched multi-layered glass.
Decorated with a red Marie heart on a yellow background, emblematic colors of Gallé's productions.
Very good condition, with a halo inside due to an irregularity in the glass, but neither a crack nor a chip.
Original bronze cabochon. Re-electrified
Signed in relief in the decoration.
Diameter at neck: 3.5 cm , at base 6.5 cm