This is a Bohemian Czech art glass scent perfume bottle with a faceted crystal stopper, or for cologne. The bottle is black glass. The bottle is marked or signed on the bottom with the words acid stamped and very difficult to see "Made in Czechoslovakia." The date is the Art Deco Period, circa 1930.
The bottle is 4 5/8" high to the top of the rim, and 5 7/8" high to the top of the stopper.
The round body of the bottle is cut into diamond points. As expected, some of the diamond points have been nicked and chipped due to use, wear and age, and are difficult to see in the photos. The majority of the diamond points are intact.
Below the neck the glass is smooth. The neck is paneled with eights side. At the bottom of one ridge, where two panels meet, is another small nick or chip, very difficult to see on black glass, and it doesn't show in a photo either. The rim is wide and polished flat with a rounded bevel on the outside.
The bottom of the bottle is smooth and shows lots of age wear with scratches and a few nicks.
The stopper has one smooth small flake where the bottom meets the neck, and it doesn't show in a photo either.
There are no other chips, nicks or cracks; however there is something rattling inside the bottle that I can't see and it won't come out.