Glass Hurricane Sconce, 8-1/2 inch Glass Handles The "IES" initials are an

The "IES" initials are an abbreviation for "Illuminating Engineering Society"

Font includes brass collar threaded to accept a # 2 oil or electric lamp burner

They are a useful 1" diameter

They then experienced a resurgence during the Colonial Revival era

Glass Hurricane Sconce, 8-1/2 inch Glass Handles The "IES" initials are anGlass Hurricane Sconce beautifully adorns wall lamp sconces, chandeliers, candlesticks and light fixtures. Clear blown glass hurricane sconce offers an enchanting look of the candle like light inside. Ideal for antique and vintage lighting. Standard base fits holders requiring a 1 5 8" fitter. 8 1 2 height is a typical size seen on many vintage lamps.