Found this online. Hope it may help you. Looks like a Carlisle according to a website called: www.hippielight.com
Yep, that's a Carlisle. Per our Lava Library: http://oozinggoo.ning.com/page/carlisle
Thank for the quick answers.
The Carlisle is a classic 1970s Lava Lite. If the price is right for you, grab it and love it. This and the kinda-sorta sister models Saturna and Aladdins Lamp use a 40-watt, intermediate base (aka "hi-intensity") bulb, and the lava should flow nicely. If you tilt the globe and look up inside the cap, there will probably be a date sticker.