This vintage opalescent glass lamp finial was made by Aladdin in the 1940s for their Alacite table lamps. The Art Deco style tall lyre design is called Precision. It's just under 4 inches high and in excellent condition with no chips or flakes. The color is slightly pinkish ivory or beige.
Aladdin 1940s Alacite Glass Lamp Finial Precision Shape