The Jefferson Glass Company was in existence from 1900 - 1933, first in Steubenville, Ohio and after 1907 in Follansbee, West Virginia. Opalescent patterns were only made during the 1901 - 1907 time-frame. This "Astro" pattern was introduced by Jefferson Glass Company about 1905. Primary a bowl pattern, it is a simple design of six-circular, comet-like rings on a threaded background, with rings of beads in the lower center of the bowl and toward the top edge. A comet-like ring is also in the base of the bowl. The opalescent top edge is gently fluted. Found in opalescent colors of white, blue, green and canary. It measures 9" across and 3" in height. There are no cracks, chips or repairs.