Art Deco Period Glass & Lucite Lamps

This is a pair of glass & lucite lamps that I purchased via an Estate sale for $30 for the pair!!.......so that was great!.......I was over the moon....they are approx. 23 in height.....the round shapes are lucite? I believe,...,because of the sound of which is dull....and the feel .....the square shapes with base are definitely glass, its much harder and cold to the touch..with a high pitch sound.....someone on another site said they are thought to be from the 1930's or so...........They are definately keepers