Circa 1952 this Tiffin Twilight (light lavender) cigar ashtray has a 10-rib Optic and a hand polished ribbed & footed base. The color is dichroic and based on the light source will change to a pale blue. This is a monumental piece of Tiffin modern glass. It is 4-1/2" (H), 8" (W) at the rim and approximately 3" (W) at the elevated foot. Condition is excellent without chips or cracks.