sizzling ! Vintage hobnail milk glass lamp shade

hobnail glass lamp shade, often made of white milk glass. Key features include:
Design: Characterized by a pattern of raised bumps, or "hobnails," across the surface.
Material: Typically made of opal or milk glass, sometimes clear glass over opal.
Style: in-demand since the late 1800s, with a resurgence in the 1950s.
Usage: Used as a shade for lamps, particularly oil lamps and vintage-style lighting.
Sizes: Available in various sizes, with fitter sizes (the diameter of the opening that fits onto the lamp) commonly around 7 or 10 inches.
Construction: Often hand-blown, with a crimped or plain top edge.
Aesthetic: Provides a timeless, elegant look and diffuses light softly.
Restoration: Favored for restoring antique lamps
*this shade has a chip on top ruffle see picture