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 Replies: 17 / Views: 1,583 |
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Pillar of the Community
United States
3234 Posts |
This is courtesy "KurtS" awhile back but I germinated the idea. When sometimes you have to be blunt about a coin, there's the CRap grading scale.
I think we can rework this a bit. I like the idea of the scale going from CR-0.00 to CR-0.99
Yep...sometimes you just have to grade the coin as crap!
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CR-0 Coin was stored in sulfuric acid, then properly dried off with Flourine gas. Slab contains a few random atoms which might be a coin. This grade is best suited for collectors who possess a scanning electron microscope.
CR-0.25 Coin went through "surface restoration" as target in particle collider. There may be holes (and isotopes) present. Best stored in a lead container.
CR-0.5 Coin was embedded in semi-truck tire and driven across the country, rotated with tire and made the return trip. It may or not be round. Caution: sharp edges may be present!
CR-0.75 Coin subjected to sticks, stones, and non-nuclear military ordnance. Something might still be legible, but it may require Google Translate to identify the series, or possibly decryption software.
CR-0.9 CR "Choice" Coin victim of chemical or electrical experiment, then subjected to "light cleaning" with various industrial tools. This is a CR "PQ" coin--few qualify, and they stand by their own merits.
Edited by Prethen
03/06/2013 3:02 pm
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Moderator
 United States
23522 Posts |
Quote:
Slab contains a few random atoms which might be a coin.  I am almost completely helpless here. |
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Pillar of the Community
United States
2480 Posts |
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Valued Member
United States
213 Posts |
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Pillar of the Community
United States
3453 Posts |
Drat! All my good comments are not forum friendly.  |
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Pillar of the Community
United States
1721 Posts |
How would this one be graded and would the slab be made to accommodate the nail?  |
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Moderator
United States
23522 Posts |
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How would this one be graded and would the slab be made to accommodate the nail? No, the nail would be surgically removed, just like they wouldn't slab the truck involved in CR-0.5. I'm calling this one CR-0.7: "She's dead, Jim." |
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Pillar of the Community
United States
2543 Posts |
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CR-0.25 Coin went through "surface restoration" as target in particle collider. There may be holes (and isotopes) present. Best stored in a lead container. So how many neutrons on my platinum coin have to get knocked around before it becomes a plutonium coin ? Edited by denco7
03/07/2013 5:06 pm
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Pillar of the Community
United States
2541 Posts |
Love it! I think I will go search the truck stop, then stop by the particle lab.
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Bedrock of the Community
United States
10045 Posts |
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No, the nail would be surgically removed, just like they wouldn't slab the truck involved in CR-0.5. A garage for each coin would get expensive! Thanks for dusting this one off, Prethen! |
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Pillar of the Community
United States
574 Posts |
I stumbled upon this post years back and finally found it again. Great scale, might be tough to get an electronic microscope. What's the process of dating those coins? Carbon dating? |
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Pillar of the Community
United States
3112 Posts |
Edited by srs77
06/07/2026 12:17 am
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Bedrock of the Community
 United States
18649 Posts |
this gave me a good laugh I'm wondering how we assess these without an electron microscope as my collider is in for maintenance |
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Pillar of the Community
United States
574 Posts |
Maybe a mass spectrometer? Would be good for exact composition
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Pillar of the Community
United States
574 Posts |
What would this grade me on the scale?   |
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Pillar of the Community
 United States
3234 Posts |
Wow...an ancient thread has been revived!
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Replies: 17 / Views: 1,583 |
Posted 03/06/2013 6:23 pm
