Although our reference books do not show this lamp specifically, we believe it to be a late 1800's / early 1900's lamp. The white glass is opaque and it appears to be fashioned like that of a Riverside oil lamp. It does have the Riverside Clinch Collar. The lamp stands 9" to the top of the collar and when the chimney is added, it stands about 18-1/2" tall. It is 7" at the foot and bowl in diameter. It has a Queen Anne #2 burner. On one side of the base there is a sliver chip and we have attempted to show it in the photos. Other than that, this lamp is beautiful and would make a nice addition to any collection or simply use as an added light!