It should be noted that silver overlay was also produced on pottery and porcelain blanks during the same time period. They also did a copper overlay. [have yet to observe a glass example and rather uncommon otherwise] It would seem logical that a white color was adhered to create the base for overlay on glass because it would be seen through the glass on the backside. Was there a chemical reason for using white above other colors?

Charles Sweigart, Reinholds, Pennsylvania

CANDLESTICKS

The #7516 candlesticks were normally sold in pairs but depending on the size of your table or Mantal you could buy sets of four.

Beth Shaut, Corning, New York

Quezal

alvin and gorham did many aftermarket quezal items- often, the former more noveau, the later more floraloften touchmarked.

Dick Stark, Bethesda, Maryland

COLLODIAL SILVER GENERATOR

Rande’s Colloidal Silver Generator almost certainly generates ionic silver and not colloidal silver. Colloidal silver is actual silver metal particles that are so finely divided that they cannot be made to coalesce. Ionic silver is generated in solution by electrolytic transfer of silver. A test for ionic silver is to add sodium chloride (table salt) and watch for a gray-white cloud of silver chloride.

Marshall Ketchum

Regarding colloidal silver generator Rande, science question. I get the changing of silver deposit to silver overlay (I think). The silver in solution is attracted to the silver deposit that’s there. However when repairing “badly worn handle” presumably down to the bare glass, or “repairing missing silver”; what attracts the silver to the glass? Is that not what the dark or light backing referred to in previous articles is for? Would bare glass attract the silver?

Harry Morgan, Beverly, Massachusetts

2013 Carder Steuben Club annual Symposium will be held at The Corning Museum of Glass in Corning, NY from September 19-21, 2013. The festivities will begin with Frederick Carder’s 150th birthday celebration on the evening of September 18, 2013.

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