Discussion in 'Frequently Asked Questions' started by Speedy, Jan 8, 2005.
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You can (and should) use a coin flip. Place the flip over the coin and press. That way you do not touch the coin with your finger and you do not damage the coin by pressing something rough (e.g., cloth) into the coin.
I never thought of using a flip. So near yet so far. Thanks for the tip.
I ordered a few pair of gloves so when I handle the coins in my two cent piece collection I don't do damage. I'm thinking at least one of them was in Abe Lincoln's pocket for a while. How's that for history?
Not satisfied with bare-hands, I then tried cotton gloves, but found them rather slippery, short on tactlie feel, and not form-fitting (either too tight and restrictive, or the fingers are too long and get in the way). They also soil rather rapidly, and if you tend to sweat, soak up the sweat and eventually transfer it onto subsequent coins.
I then tried using Nitrile Exam Gloves (like your Dentist and Medical Practioner use). They come in Small, Medium, Large, and XLarge sizes, are form-fitting, and usually have a non-slip micro texture that enhances gripping. Nitrile is non-hypoallergenic, is more tear-resistant than Latex, and has very good resistance to chemicals (like Acetone, alcohol, MS-70). I usually get them in a box of 200 for about $13 at the major discount Club Stores.
Since I have been using the Nitrile Gloves I have been able to handle ANY coin with thumb and forefinger on its surfaces without leaving ANY marks or transferring any foreign substance. I also have NEVER dropped a coin, even when flipping it over like the TPGs do to evaluate cartwheel. I do look at each coin under magnification to check for hairlines, defects, and features, and this takes quite a bit of time under the lamp; it is very comforting when you don't have to worry about handling issue when looking closely at the surface feature with up to 20X magnification!
Even the humble Mylar / cardboard 2x2 in a non PVC album is good. Just turn the pages! Very few of my coins are encapsulated, and none of them are slabbed.
Coins in the British Museum just sit in trays, ready to be picked up by the edges.
Then again, the British Museum doesn't bother with 'made for the collector' mint product uncirculated and proof coins, either singly or in sets.
How does the ANA display their most valuable coins? Can study coins in their collection be handled by gloved human hands?
http://amo-csd.lbl.gov/downloads/Chemical Resistance of Gloves.pdf
Also, SAE and metric plastic calipers with vernier are found at most hardware stores for under $5 and the accuracy is acceptable for coins/ However, remember that many coin metals are softer than hard plastic, so still use care to prevent accidental scratches.
I use a photographic "gray card."
Many of the grading services use black velvet jeweler's pads.
The big difference to me is that it is perfectly OK for jewelers to burnish and polish out any hairlines induced on the metal they are handling.
I don't recall ever putting a hairline on a coin with any jewelers pad I've ever used. I keep mine COVERED, when not in use and Clean it w/compressed air and get a new one every so often - they are cheap. Otherwise, even dirt on a pad can hairline a coin.
The same here.
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