Up for sale is a very old vintage small square crystal black glass perfume bottle with glass stopper. I used high intensity LED lighting to get good pictures of the interior but this made the top and inside look a greenish color. Without any lighting, the bottle looks black. Sorry for the lint on the bottle in the pictures. I can only find two other examples of this perfume bottle.
Both listed the piece as Art Deco and as I'm not an expert, I have done the same. There may be a Baccarat relationship but I'm not certain. Measurements are approximate: 2.75" Tall w/ Stopper 2-1/8" Tall w/o Stopper.