This is the base of a miniature oil lamp in a clear glass ball & swirl pattern. The bottom is marked with the number 2 in a hexagon. The brass knob is marked "the P&A MFG. Co. Acorn." I do not have the hurricane shade. The lamp is 5 1/2" tall. It has been used, the wick is dark from burning( and quite short) and there are traces of oil in the bottom of the lamp. JG.