RARE HOLOPHANE 4012 II PRISMATIC GLASS STREET LIGHT DOME COVER SHADE LENS 1950s

Description: A little history lesson first, courtesy of brasslightgallery.com ... The term "Holophane" is used generically to describe clear molded glass or crystal shades and globes with parallel or crosscut prisms. Vintage Holophanes (circa 1890s-1950s) are outstanding examples of mid-twentieth century industrial art. The crisp clean lines create a beautiful glow when illuminated. Holophane glass was invented in the 1890s and was made in many shapes, sizes and patterns to provide specific types of illumination. Holophane glass is a beautiful choice for industrial lighting. The name Holophane was coined by French scientist Andre Bondel and Turkish born engineer, Spiridion Psaroudaki in the 1890s for their newly invented glass. They described the glass in the 1896 US patent #563,836 as having a "luminous appearance over its entire surface... entirely shining," and "having great beauty as well as illuminating power." According to the Holophane Company's website, the term was "derived from the Greek word 'Halos' meaning whole or entire and 'Phanein' meaning to appear or to seem. Thus the word 'Holophane' was defined as to appear completely luminous." This highly engineered glass was initially made in France in the 1890s. The glass was designed with parallel prisms or ribs on the interior and exterior in order to refract and reflect light, thereby preventing the absorption of light. The engineering provided optimal illumination with little glare. The greater amount of lead used in older glass provided sparkle and life. The glass was originally made for both gas and electric illumination. During the dim gas/electric era in which Holophanes were invented, they were truly state-of-the-art performance lighting. For the most part, the glass was made by companies under the name Holophane. The Holophane Company was founded by Otis Mygatt in 1896 in London to manufacture "illuminating appliances." At one point, there were three companies under Mygatt's majority ownership with the name "Holophane": the Holophane Glass Company in the USA, Holophane Ltd. in Britain and Holophane Company in France. There is still a Holophane company in business in the USA today. These decades-old originals, salvaged from amphitheaters, naval yards and other industrial buildings, are increasingly hard to find. They provide great task lighting for kitchen islands, tables and lofts. And now on to this listing ... This listing is for one very hard to find Holophane dome industrial street light cover. (I have TWO of these available. Consider purchasing both and taking advantage of combined shipping!)The model number is 4012 II (that is, the number 4012, and then two upper case I's, like maybe a Roman numeral 2). The groves/ribs pressed into the glass run in many different directions on one half of the dome (labeled "Street Side"). The other side is labeled "house side," where the grooves/ribs all run vertically. I've spent SO MUCH TIME studying these pieces with a magnifying glass that I've given myself a headache. Here are the words I've been able to read on ONE of them, to the best of my ability to see them: Can. Pat. 1950-1958; Patent # 1,761.654; what looks like a company logo with the letters LM inside a triangle, which is further inside of a circle; and two strings of numbers for which I don't know the purpose (maybe catalogue numbers?): 2492087 and 2758200. The two pieces offered here are identical, so the information on the second one is almost certainly the same; but the words/letters are nearly invisible on the second one because it doesn't seem to have been pressed into the glass as well. I tried looking up the Canadian patent number but got no results. Exceptionally fine condition with no chips, crack, or unusual wear. Measures 8 1/2" in diameter. If you are a collector of vintage Holophane industrial lighting fixtures, here's an opportunity to acquire a unique and rare piece to your set. Will be wrapped with care and shipped with GOBS of packing material! I am listing many other items on eBay, including other vintage lamps and lamp shades. Please check my other listings, as I will be happy to combine shipping. I do not accept returns. Please check out the photos and the listing description carefully. Ask any questions if you are unsure. ABSOLUTELY NO REFUNDS OR EXCHANGES. NO RETURNS ACCEPTED.

Price: 175 USD

Location: DeLand, Florida

End Time: 2024-12-03T13:19:22.000Z

Shipping Cost: N/A USD