This vintage rare item dates to the 1920's and is very similar to some of the Lalique pieces from the day, but I find no markings on this item. This may have been the architectural piece for being mounted in a wall or window maybe, but most likely it was a free standing art work with the bronze stand that is now missing. This is the glossy flat back side and the raised relief satin finished top side of the glass with the Dancing Nude/Semi-Nude Woman/Ladies and one playing a flute. This measures 1" thick, 8" high and 12" long. Please note there is the minor damage as mentioned here.....there is a scratch on the back that is visible, but could be corrected with a filler/at the edge there are 2 rough spots on the back/polished side as well, at 5 o'clock and 7 o'clock positions, see photos. These minor issues are not visible on the front / top / satin side of the piece.