ANTIQUE CAST IRON Obsolete Incandescant Light Bulb Molds Sylvania Corning Glass

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Seller: snapdragonshideaway (1,662) 100%, Location: Boyertown, Pennsylvania, Ships to: US, Item: 123873839173 This is a Lot of 3 obsolete cast iron molds for the production of incandescent light bulbs. These 3 SIZES are for chimney glass style bulbs ranging from 1-3/4" to 3" in diameter. They came from an inventory sale of a turn of the century high production Sylvania mill in northern Pennsylvania. The smallest weighs about 5 lbs and the largest is 9 lbs. I have many other sizes and styles listed individually in my store and will combine shipping to minimize cost. Osram Sylvania of Wellsboro is the mass producer of incandescent bulb shells, and Christmas ornaments. The light bulb shells are then sent to the St. Mary's, PA branch for the addition of filaments. In 1926, then owned by Corning Glassworks, the first ever Ribbon Machine, created by William Woods, was installed in the Wellsboro Plant. This produced light bulbs at a rate of one million bulbs in 24 hours. This machine is still in use today, and after a few modifications and fine tuning it now produces a record 2000 bulbs a minute! This changed the way the world used lights forever, and in 1983 The Ribbon Machine aka The Corning Machine was added to the International Historic Mechanical Engineering Landmarks List. INTERNATIONAL SHIPPING IS NOT AVAILABLE FOR THESE ITEMS Condition: Used

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