This is a Flower-Form (also known as Floriform) Favrile glass vase, which is made from colorless, transparent green, and opaque pink glasses; blown and iridized. The tulip-shaped cup is cased by opal glass with ribbing and green feathering that represents leaves. The long, elegant stem, fused with translucent twisted green glass rods, swells into an elongated knop near the foot. The inside of the cup and the underside of the foot have been fumed with gold, which provides a warm, soft glow. Fuming is an iridization technique whereby blown hot glass is sprayed with metallic salts resulting in the iridescent surface seen in this example. Signed on the underside.