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2. Baird & Co - Wikipedia

   en.wikipedia.org/wiki/Baird_&_Co

   Baird & Co. is a British gold refiner and the full-service bullion merchant in the United Kingdom.Founded by Tony Baird in 1967, Baird & Co. initially dealt in numismatic coins expanding into bullion bars and jewellery as time progressed.

3. Coinage metals - Wikipedia

   en.wikipedia.org/wiki/Coinage_metals

   Used for plating coins and in some rare hard stainless steel coins Copper: Many coins throughout history were made of gold, silver and copper. Silver: Gold: Iron: Numerous Chinese cash coins were made of iron, with the first being issued by the Han dynasty in 118 BCE.

4. List of bullion coins - Wikipedia

   en.wikipedia.org/wiki/List_of_bullion_coins

   Bullion coins are government-minted, legal tender coins made of precious metals, such as gold, palladium, platinum, rhodium, and silver. They are kept as a store of value or an investment rather than used in day-to-day commerce. [1]

5. Precious metal - Wikipedia

   en.wikipedia.org/wiki/Precious_metal

   One of the largest bullion coins in the world was the 10,000-dollar Australian Gold Nugget coin minted in Australia, which consists of a full kilogram of 99.9% pure gold. In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $ 1 million AUD, making it the largest minted coin in the world with a gold value of ...

6. Pennino Brothers Jewelry - Wikipedia

   en.wikipedia.org/wiki/Pennino_Brothers_Jewelry

   Pennino Brothers Jewelry was a United States jeweller founded by Oreste, Frank and Jack Pennino in 1926 and based in New York City. It designed and manufactured costume jewelry using rhinestones set in gold plate, sterling, vermeil or rhodium-plated base metal. Many of these pieces were made by Italian immigrants, such as Adrian Scannavino and ...

7. Gilding - Wikipedia

   en.wikipedia.org/wiki/Gilding

   Rhodium compounds are used to improve the binding to the substrate. Burnish gold or best gold is applied to the ware as a suspension of gold powder in essential oils mixed with lead borosilicate or a bismuth-based flux. This type of gold decoration is dull as taken from the kiln and requires burnishing, usually with agate, to bring out the colour.