Abe Silverman's Antique Silver Shop
Pair Vintage QUALITY CORRECT Oval Cufflinks Cuffl Lnks with Dichroic Glass Cabochons Gold Bezel
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Vintage pair of QUALITY CORRECT oval cufflinks cuff links with Dichroic Glass Cabochons in a gold-toned bezel setting. (c. 1940's)
Absolutely stunning colors set in a gold-toned setting.  Marked on the backs with QUALITY CORRECT and their logo.  Excellent condition with no damage to note.  Very gently worn.  Measures 3/4" x 5/8" oval.

Dichroic glass is glass containing multiple micro-layers of metals or oxides which give the glass dichroic optical properties.  The main characteristic of dichroic glass is that it has a particular transmitted color and a completely different reflected color, as certain wavelengths of light either pass through or are reflected.  This causes an array of color to be displayed. The colors shift depending on the angle of view. Dichroic glass is an example of thin-film optics.  The invention of dichroic glass is often erroneously attributed to NASA and its contractors who developed it for use in dichroic filters.  However, dichroic glass dates back to at least the 4th century AD.

Multiple ultra-thin layers of different metals (such as gold or silver); oxides of such metals as titanium, chromium, aluminum, zirconium, or magnesium; or silica are vaporized by an electron beam in a vacuum chamber.  The vapor then condenses on the surface of the glass in the form of a crystal structure.  A protective layer of quartz crystal is sometimes added.  Other variants of such physical vapor deposition (PVD) coatings are also possible.  The finished glass can have as many as 30 to 50 layers of these materials, yet the thickness of the total coating is approximately 30[3] to 35 millionths of an inch (about 760 to 890 nm).  The coating that is created is very similar to a gemstone and, by careful control of thickness, different colors may be obtained.  The total light that hits the dicro layer equals the wavelengths reflected plus the wavelengths passing through the dichro layer.

A plate of dichroic glass can be fused with other glass in multiple firings. Due to variations in the firing process, individual results can never be exactly predicted, so each piece of fused dichroic glass is unique.  Over 45 colours of dichroic coatings are available to be placed on any glass substrate.

Quality Correct seems to have been heavily involved in crafting Masonic jewelry.

A2013 - Pair Vintage QUALITY CORRECT Oval Cuff Links Cufflinks with Dichroic Glass Cabochons Gold Bezel
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