Here is a piece I picjed up at the same place as the turquoise and clear compote.
It is very heavy purple cased in clear vase with a cut and ground top. It has a recessed, finished pontil and an "L" mark?? I have looked in Ivo's book and couldn't find a similar mark and looked on Angela's Glass Encyclopedia.

Click on thumbnail above for all the pictures.
It is 6.25 inches tall and 3.25 inches wide at the top.