My guess is that this is 52 ounces however I’m not 100% positive. It certainly seems to be similar size. The tag on the cord is a little bit brittle and flaking apart. I just put it inside of a bag to keep it from making a mess I don’t know if it’s worth it to keep it on there to a collector

large Lava Lamp Orange Gold Base 50 Year Anniversary. Condition is Used. Shipped with FedEx Ground Economy.