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2. Deben (unit) - Wikipedia

   en.wikipedia.org/wiki/Deben_(unit)

   The inscribed value is of 3 deben, representing a unit of 29 grams (1.0 oz), likely the earliest copper deben. [2] Based on this evidence, it was argued recently that copper and gold deben were used since Early Dynastic Period in ancient Egypt. [3]

3. Fineness - Wikipedia

   en.wikipedia.org/wiki/Fineness

   For example, knowing that standard 18-karat yellow gold consists of 75% gold, 12.5% silver and the remaining 12.5% of copper (all by mass), the volume of pure gold in this alloy will be 60% since gold is much denser than the other metals used: 19.32 g/cm 3 for gold, 10.49 g/cm 3 for silver and 8.96 g/cm 3 for copper.

4. List of bullion coins - Wikipedia

   en.wikipedia.org/wiki/List_of_bullion_coins

   Country Name of bullion coin Fineness weights options in troy ounces (ozt) Years Minted Australia: Emu.9995: 1 ozt: 1995–1998 Canada: Palladium Maple Leaf.9995: 1 ozt: 2005–2010

5. United States Mint coin sizes - Wikipedia

   en.wikipedia.org/wiki/United_States_Mint_coin_sizes

   [1] Seven distinct types of coin composition have been used over the past 200 years: three base coin alloys, two silver alloys, gold, and in recent years, platinum and palladium. The base metal coins were generally alloys of copper (for 2 cent coins and lower), and copper/nickel (for 3 and 5 cent coins). Copper/nickel composition is also used ...

6. Coins of the United States dollar - Wikipedia

   en.wikipedia.org/wiki/Coins_of_the_United_States...

   Circulating coins exist in denominations of 1¢ (i.e. 1 cent or $0.01), 5¢, 10¢, 25¢, 50¢, and $1.00. Also minted are bullion, including gold, silver and platinum, and commemorative coins. All of these are produced by the United States Mint.

7. Costco Now Sells Gold Bars: Here's How to Buy Them

   www.aol.com/costco-now-sells-gold-bars-160000656...

   The exact gold bars that Costco offers are 1 ounce gold PAMP Suisse Lady Fortuna Versican bars. The one-ounce bars go for just under $2,000, depending on the time of purchase, according to ...