The chain will support the lamp but but not at all positions springs need tightened. The tank needs cleaned and and damage inside to the stem. The white and frosted case shade is a 13 1/2 inche in diameter.
The clear glass ball chimney is 13 inches tall no issues. Tank has some patina loss needs a good polishing. Lamp base , iron horse and retractable chain all marked Bradley Hubbard.The item "Antique Bradley Hubbard B&H Store Library Parlor Hanging Nickel Oil Lamp 1880s" is in sale since Monday, January 02, 2017. This item is in the category "Collectibles\Lamps, Lighting\Lamps\ Non-Electric\Oil". The seller is "tiogaray123" and is located in Mainesburg, Pennsylvania. This item can be shipped to United States.