You are offerding on a Antique Will & Finck San Francisco Mining or Marine Brass Oil Lamp. 11\" high x 3.25\" Hap hazard lamp. Glass is missing. Marked MGM studios on bottom, guessing it was a movie prop. Has a dent in the bottom rim, causing it to not to want to sit flat. It does unscrew on both ends and is clean inside the tank. If you get a chance please visit my store, cj\'s small treasures, for other great Buy It Now items. I know nothing of its collectability, so please view the photo and offer accordingly. If you have any questions please email me before offerding. I try to provide you with the most accurate description possible but may, because of my limited knowledge of particular items, leave something of importance out that a collector may want to know. I do offer a 100% satisfaction guarantee. If for any reason you are not satisfied with your purchase, please return the product for a full refund no questions asked. Thanks in advance and good luck. I will accept international offers after I have been contacted and shipping charges have been agreed upon.