Antique 11" glass ceiling light fixture shade cover 3 chain holes style frosted white & clear - outlet candlewick boopie style art deco victorian C

antique 11" glass ceiling light fixture shade cover 3 outlet chain holes style - frosted white & clear. this would be from the 1920 to 1930 era. it is a ceiling shade 11 inches across, made of glass, has the 3 chain holes, is clear and white frosted glass, has the boopie hobnail candlewick style rim and various etched designs. this is really nice. sitting on the table it is 5 inches tall to the center tip. I see no problems with this shade.