Blown Cobalt Blue "Ribbed Spiral Twist Drinking Glass" with a pushed in Pontil Scar !
Blown Cobalt Blue Fluted with a Spiral Twist Drinking Glass or Tumbler with a flat bottom showing the imprint of a Sharper Pointed Tool pushed into the Pontil Scar !
Early Blown Glass into a 5 Inch Ribbed Mold with a 2 3/8 inch Diameter . Removed from the 10 Ribbed Mold while still hot , and then Finished by Twisting the Form.
Cobalt Blue Color in thick parts of glass, and Saphire Blue at thinner parts of glass sides.
Measures 4 7/8 inches high.Top opening measures 3 3/8 inches across,and bottom is 2 3/8 inches across.
Weighs 6.9 Ounces.
This tumbler has correct & honest wear pattern on the base and the slightly protruding spiral ribs. Also Glass specks , and a few trapped tiny air bubbles and silica. (Art Glass tends to have an over abundant amount of air bubbles throughout, without any dirt specks or silica)
From an old "Bishop Estate" auction held in Elizabethtown,Pa.
I Guaranteed this one to be an Authentic 19th Century Piece ! Three day inspection period is Our Ruby Lane Dealer's Promise to you.
Item ID: 2762
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