Crystal Lamp?

Two matching lamps have been sitting around at my favorite thrift store. They may be glass or crystal, I don't know how to tell. They are heavy. Here is one. I looked at the bottom and briefly around the lamp and saw no marks. Do you have any thoughts

 

European cut crystal.
Waterford did some, but I'm not sure this is one.

To tell if something is lead crystal, hold it toward sunlight. The light should refract, in other words, you will see the colors of the rainbow. That indicates lead crystal.

 

Thanks I'll try it, if they are still there.