I apologize for the quality of these images, but they are from a while back. This is an Exbor vase I had at one point that I ended up selling. This piece had the original silk lined Exbor box with it, and was a period example of the vase by Pavel Hlava. I also currently own two other examples of this vase with two different patterns in the glass. One is similar to this example, and the other has the "Galaxy" pattern. Both of those examples have the mark without a circle also. This one also had what appeared to be the additional stamp as shown, with the H and P initials incorporated in the design. I am also of the opinion that the two other vases I own are both early production examples of the vase.