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Coin collecting is such a fun hobby: You learn of places you may never
visit.
You wonder who may have held the
coin before you. |
| NUMISMASTER:
YOUR ONLINE WORLD COIN DATABASE |
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| Purity: Percent, meaning parts of gold per 100 (ex. 37.5%) Fineness, meaning parts of gold per 1,000 (ex. .375 fine) Karat, meaning parts of gold per 24. (ex. 9 k). Not to be confused with the Carat, equaling a fifth of a gram, which is used to state the weight of a gem stone. 100% = 1000 fine = 24 karat 91.7% = 917 fine = 22 karat 75.0% = 750 fine = 18 karat 58.3% = 583 fine = 14 karat 41.6% = 416 fine = 10 karat* *The minimum amount of gold that a product can be composed of and carry the label "gold", according to the U.S. Federal Trade Commission "Guides to the Jewelry Industry." ******************************************************* Weight Equivalents: 1 troy ounce = 20 pennyweight 1 troy ounce = 1.097 ordinary ounces 1 troy ounce = 480 grains 1 troy ounce = 31.1 grams 1000 troy ounces = 31.1 kilograms 1 gram = .03215 troy ounces 1 kilogram = 32.15 troy ounces 1 tonne = 32,151 troy ounces 1 avoirdupois (ordinary) ounce = .911 troy ounces 1 avoirdupois (ordinary) pound = 14.58 troy ounces |
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*For info you might also try a library for a copy of the Standard Catalog of World Coins for pictures, values and lots more interesting facts. |
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CLEANING
COINS:
DON'T DO IT! Cleaning reduces the
value of a coin by 50% or more.
Coins can decay due to corrosion from chemical reactions between the metal and moisture in the air (humidity). Zinc is especially bad for this with its 'white rust'. Keeping it in a pH environment of 8 or lower may inhibit it. Ancient coins can also exhibit 'bronze disease': Link, Link. Keep coins in a dry, non-reactive environment. |
Online Coin Groups:
Meet
collectors from around the world! < The Best, in my opinion! PCGS Coin Collector's Universe Forums ------------------------------------- NGC Colletor's Society World Coins Forum ------------------------------------- Coin Talk Forum -------------------------------------- Coin People Coins Forum -------------------------------------- Omni Coins Forum -------------------------------------- World Copper Coins Forum -------------------------------------- Canadian Coin Reference Site Forum -------------------------------------- Royal Australian Mint Forum -------------------------------------- Aussie Coin Varieties Forum -------------------------------------- German Coin Enthusiasts Forum -------------------------------------- Coin Monger Forum --------------------------------------
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The best environment is dry with low humidity and low dust levels. You might try using 2x2's, a 2" square cardboard holder (above) with clear windows, to house your coins. There are also 2x2 clear plastic flips, 2x2 paper envelopes and clear polyethylene slips 2x3, etc that can be used for short term storage.
Choices in coin holders include but
aren't limited to the following, in order of estimated popularity: Jake's Marketplace http://www.jakesmp.net Brooklyn Gallery Coins & Stamps http://www.brooklyngallery.com Kelgory Coin & Currency Supply www.coin-supplies.com Stanton Books & Supplies http://www.stantonbooks.com Roy Reynolds Coins http://www.royreynoldscoins.com *The above, thanks to Reid Goldsborough* |
Online Coin Collector Web Pages Links:
- Piotr's
Excellent Interactive Coin Site
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| * *If you have any
questions on coins I'll be
glad to try and answer them the best
I can. * * ***email me***
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| For pics, pricing and more info you might also try a library for a copy of the Standard Catalog of World Coins. |
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