I am going to hazard a guess that the glass is c. 1950s/60s based upon the style of the sticker. From what I can see in the image, the teeth on the tray also suggest a post ABCG period. The region of origin, Bohemia, is not very helpful in this case as Bohemia has been a political football for more than a century. Generally speaking, I would date the glass to mid 20th C.