Cranberry font likely original to the shade. Likely a Hobbs produced shade. Cranberry font has two air bubbles on top side see pictures.
The item "VICTORIAN ANTIQUE 13-5/8 CRANBERRY OPALESCENT RIBBED HANGING OIL LAMP SHADE" is in sale since Sunday, November 1, 2020. This item is in the category "Collectibles\Lamps, Lighting\Shades".The seller is "jstratton" and is located in Churubusco, Indiana. This item can be shipped to United States.