Set of 5 Matching 4 inch Shades with unmarked "Halophane Type" Glimmering Silver Ribs Pattern Circa 1910 !!! Top edges are Fire Polished smooth, and the inside base diameters have the rough polished shards at the mold seams.
Measurements : Thick Glass Base fitters are slightly under 4 inches to fit Standard 4 inch shade holder rings. They stand 4 inches high, and 7 5/8 inches across the top openings.
Thick "Halophane Type" Glass Shades are prone to have some small hard to see 1/4 inch long inclusions inside the glass and some tool smear marks from handling molten glass while "Fire Finishing" the top edges, as captured in the second last photo at 12 o'clock and 2 o'clock positions.
Weight : 8 Pounds.