This is the "Pale Yellow" vase lamp. It is a member of the Alpha Art Glass lamps having six small toes (feet). One large difference between it and the other Alpha Art Glass vase lamps is that the paint on the pale yellow is fused on the "outside" of the vase, while the green and tan Alpha Art Glass lamps have the paint fused on the "inside" of the vase.
Another major difference is in the painted band around the bottom of the base. On this particular lamp the painted band has a texture to the paint. It has been argued that the lamp was repainted at some time with a textured paint, but I believe that to be entirely false.
In J. W. Courter's book "Aladdin the Magic Name in Lamps." this lamp can be seen in the revised edition on page 97 figure 193. Close examination of the painted band at the bottom of the vase will support the fact that it did indeed have a textured band. The picture is comparing an Amber (tan) Alpha Art Glass vase lamp with what it refers to as "ceramic"vases and I'm not sure that the reference is correct since none of the lamps in the photo are "ceramic". All of them are glass. The photo does however describe that the paint on the pale yellow vase lamp is fused on the outside as it is on this lamp, and it shows the textured band on the lamp as it is on this one as well.
This photo show a closer few of the textured foot. It is showing some ware with a few of the high spots in the paint being chipped off but the paint is entirely original!