This is a beautiful Bohemian Czech art glass vase. The maker is Kralik. The vase is marked on the bottom. The date is circa 1920.
The vase is 12 ¼” high and 4 ¼” wide at the foot.
The food is round. The body is cylindrical with a short neck that tapers into a flared mouth.
The interior red glass is actually darker than it appears in the photos, more burgundy, darker, and not as bright. The red glass shades lighter as it goes towards the foot. The outside glass is clear. The mottled colors, a type of spatter or spangle, come from putting blobs of different colors between the red and the clear, and it forms streaks and patterns.
The rim is polished flat with a very tiny bevel on the inside. The bottom is slightly indented and smooth.
The mark on the bottom is acid stamped and it appears there may be two or more such marks, and one is more legible. Please look at the last photo carefully. I believe the one that is more legible is a round circle that reads Made In Czechoslovakia with an L in the middle.
There are no chips, nicks or cracks. There are a few air bubbles in the glass.