It is a Twilight Blue bowl joined with a clear glass foot. You can see glue when looking from the underside where the two were joined. Bottom of base stamped Aladdin Fenton 2000, Limited Edition. The item "PROTOTYPE Auction 2001 #19 Aladdin Fenton 2000 Kero Oil Grand Vertique Lamp" is in sale since Sunday, May 06, 2018. This item is in the category "Collectibles\Lamps, Lighting\Lamps\ Non-Electric\Kerosene". The seller is "dcorbis6x85" and is located in Cincinnati, Ohio. This item can be shipped to United States.