Here is an antique glass shade for an oil lamp. This is not my primary area of expertise so I welcome questions if my description isn't complete and clear. This measures 13 3/4'' diameter and the attaching lip is 6'' across. There is one flaw in the glass, a small white bump which can be seen in the 4th photo (looks brownish but it is white; the other spots are reflections). In the last photo you can see a streak in the glass that looks like a crack but it isn't. Condition is excellent with no chips cracks scratches or repairs. The item "Antique Cranberry Opalescent Glass approx. 14'' Dome Shade Oil Lamp hobnail" is in sale since Monday, June 05, 2017. This item is in the category "Antiques\Decorative Arts\Lamps". The seller is "youngday98" and is located in Los Angeles, California. This item can be shipped worldwide.