Item | Properties | Weight | Dimension | Thickness | Date |
1971 RM1 Malaysia Coin | n/a | 17.0 g | 24.55 mm dia | Approx. 3.5 mm | April 2010 |
Friday, April 30, 2010
Koleksi 29 : 1971 RM1 Malaysia Coin
Wednesday, April 28, 2010
Koleksi 28 : 2001 Australian Kookaburra 1 oz Silver Coin
Item | Properties | Weight | Dimension | Thickness | Date |
2001 Australian Kookaburra 1 oz Silver Coin | 99.9% fine Silver | 31.11 g | 40.6 mm dia. | 4.0 mm | 27 April 2010 |
Tuesday, April 13, 2010
How to care for a silver coin collections
How to clean coins safely
Here's How:
- Wash your hands with soap.Washing up will remove the oils and tiny grit from your fingers.
- Lay down a soft towel.Place a soft cloth or towel, folded over a couple of times, on your working surface to catch coins you might drop, and to provide a space for them to dry.
- Set up your soapy bath.Fill a small plastic container with warm tap water. Do not use glass, china, or metal, as these hard surfaces can scratch your coins! Disposable food storage containers are perfect for this. Just don't store your coins in them permanently. Add a small amout of mild dish-washing detergent to the container filled with warm water. Don't overdo it - all you need is a really tiny squirt.
- Prepare your final rinse bath.Fill a second plastic container with distilled water, for the final rinse. Although distilled water is by far the best, you can substitute hot running tap water.
- Clean the coin.Pick up the first coin, and immerse it in the soapy water. Gently rub both sides of the coin between your fingers, paying attention to any stickiness or gunk. Rub gunk near the edges away from the center of the coin, not into it. Always work in an outward pattern. Dirt and gunk near the edges should simply be made to go over the side with your thumb, not all the way across the coin. Don't put all of your coins in the water at once! Do them one at a time, to avoid their coming in contact with each other and causing scratch marks on the surfaces.
- Rinse the coin.Rinse the coin under running water, gently rubbing until all soap residue is gone. Always remember, gentleness is the key! Don't rub hard, and if you feel any grit, even light grit, don't rub it into the coin because it will scratch the coin very easily. Instead, sort of agitate the coin by moving it quickly in the water to dislodge the grit, touch it gently only if needed to free it up.Every motion you make with your fingers should be focused on not causing scratches to the coin's surface.
- Do the finishing rinse.Swish the coin around in the distilled water, to remove the chlorine residue and other contaminants that are found in tap water. Hold it by the edges and agitate gently. At this point, you should no longer touch the coin on its faces. Touch it only by the edges when using your bare fingers.If you must use tap water for the final rinse, then run the coin under fairly hot water.
- Allow the coin to dry.If you use a distilled water rinse, you can set the coin on the towel to air dry. The coin should dry spot-free, because distilled water is free of dissolved minerals and other impurities.If you had to do the final rinse in hot tap water, then gently pat the coin dry to help prevent spotting. Never rub a coin dry! Always pat it dry gently with a soft cloth or tissue.
- Repeat until finished.Now wash the rest of your coins, one at a time, following Steps 5 through 8 carefully. If you run across a coin that needs to soak for awhile to get clean, put it in the tub of water off to the side, so you don't accidentally ding it with another coin you are working on.
- Store your coins.Make sure your coins are absolutely dry before putting them away. Damp coins can suffer damage over time. Remember to always handle coins only by the edges. The only coins I ever touch the faces on are the ones I am about to spend! :)
Tips:
- Never try to remove the natural oxidation from coins, such as the tarnish on silver. This is called "toning" and the coin is worth more with it intact. Removing it will damage the coin's surface and greatly reduce its value. In other words, no dipping, polishing, or chemical solutions should ever be used on coins.
What You Need:
- Two small plastic containers
- Mild dish detergent
- A soft towel
- Access to running tap water
- Distilled water
Top 7 ways to ruins your coins
The seven best ways to ruin your coins are things that many beginning collectors do without even thinking about them. I've even seen expert coin dealers spitting on their coins! If you care about protecting the investment you're making in your coin collection, take the time to learn how to properly handle, clean, store, and protect your rare coins.
1. Touch Your Coins
Just touching your coins with your bare fingers is enough to cause damage to them, especially if you collect higher grade coins. And you will definitely damage them if your fingers come in contact with mint-state and proof coins. Your fingers contain oils and miniscule pieces of grit that will adhere to the coins and cause them to discolor or suffer microscopic scratching. When you handle your coins, wear cotton or latex gloves, and handle only the edges.
2. Clean Your Coins
With the exception of freshly dug-up detector finds, cleaning or polishing your coins will do more harm than good. Once metal has been exposed to the air, it is natural for it to oxidize, or tone. If you strip the coin of this toning, not only will you lose any remaining mint luster, the coin will appear harsh and unappealing, and suffer microscopic abrasions that lower its grade. Plus, toned coins are worth more than stripped coins. If you really must clean them, clean coins safely.
3. Spit on Your Coins
Talking about your coins can do just as much damage as touching them or cleaning them, if you do so with the coins exposed while you chatter away. Little bits of saliva escape from your mouth when you talk, and these can cause spotting and discolorations that are difficult to remove. Many uncirculated and mint-state coins have been ruined this way. Say whatever you want about your coin collection, just make sure your coins are safe when you say it!
4. Break Their Holders
You are certain to greatly decrease the value of your mint set and proof set coins by removing them from the mint-issued holders they come in. The holders, along with the box and literature (if any) are part of the "set" and should be kept intact and pristine. Similarly, coins that have been slabbed are worth a premium in their protective cases. Never remove coins from these types of permanent holders.
5. Expose Them to Acid
Storing your coins in envelopes, wrapped in paper, with your notations beside the coins, or in cardboard boxes is a good way to damage them unless you are careful to use acid-free paper materials. Over time, the paper material breaks down, releasing acidic chemicals around your coins. This causes spotting, discoloration, and can promote oxidation (toning) of your bright, mint surfaces. Be sure to buy only acid-free paper and cardboard supplies for your coin collection.
6. Coat Your Coins in Green Slime
Another good way to cause spotting and degraded surfaces is to store your coins in PVC-based plastic flips, holders, and boxes. Similar to the way the acid in paper can harm your coins, the chemical by-product of certain plastics can damage your coins over time. If you store coins in those handy food-grade plastic containers, or in soft, pliable coin flips, your coins will eventually develop a slimy green coating on their surfaces which will damage them permanently.
7. Expose Them to the Elements
If you store your coins in the attic or basement, you are probably exposing them to extremes of temperature and humidity that will promote their oxidation. In addition, these conditions will more quickly break down the storage materials (such as flips, paper and cardboard, plastic containers, etc.) your coins are organized in. To protect your collection the best, store it in a dark, dry, temperature-controlled environment (such as a safe deposit box or specialized coin cabinet.)
Sunday, April 11, 2010
Koleksi 27 : 2008 Australian Kookaburra 1 oz Silver Coin
Item | Properties | Weight | Dimension | Thickness | Date |
2008 Australian Kookaburra 1 oz Silver Coin | 99.9% fine Silver | 31.11 g | 40.6 mm dia. | 4.0 mm | 08 April 2010 |
Koleksi 26 : 2007 Australian Kookaburra 1 oz Silver Coin
Item | Properties | Weight | Dimension | Thickness | Date |
2007 Australian Kookaburra 1 oz Silver Coin | 99.9% fine Silver | 31.11 g | 40.6 mm dia. | 4.0 mm | 08 April 2010 |
Koleksi 25 : 1 Dirham IMN
Item | Properties | Weight | Dimension | Thickness | Date |
1 Dirham IMN | 99.9% fine Silver | 2.975 g | 25.0 mm dia. | 1.0 mm | 01 April 2010 |
Koleksi 24 : 2002 10th Men's World Cup Hockey Commemorative Coin
Koleksi 23 : 2009 Australian Koala Gilted Edition 1 oz Silver Coin with NGC Grading
Item | Properties | Weight | Dimension | Thickness | Date |
2009 Australian Koala 24k Gold Gilded 1 oz Silver Coin with NGC | 99.9% fine Silver | 31.11 g | 40.6 mm dia. | 4.0 mm | 01 April 2010 |
- Specimen Quality 99.9% Pure Silver
- Enchanting Reverse Design
- 24-Carat Gilding
- Shimmer Table
- Australian Legal Tender
- Limited Mintage – 10,000