Grandma's vintage chrome glass/crystal pole tension lamp

Im pretty sure the lamp is from the 50's. The globes are very thick and heavy.The globes are either crystal or glass and weigh a ton.I pretty sure you can drop them and only fear of damaging your floors lol.Can change the lighting also to have it light up in different intervals. Either have 1 or 2 light or all 3 The pole is real chrome. Belonged to my grandmother and although i don't know the maker,this lamp was a made on the high end of the scale