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mikediamond's Last 20 Posts
| 2000 Massachusetts Quarter Brockage?
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mikediamond
Pillar of the Community
United States
2656 Posts |
 Posted 03/22/2025 5:10 pm
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It was struck through a late-stage hammer (obverse) die cap that had experienced numerous shift-and-strike events against previous planchets. Here's an image of a similar specimen in which the correctly-facing incuse design elements are more easily seen.
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| | Forum: US Modern Variety and Error Coins |
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| 2021 Shield Cent Struck Thru Webbing
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mikediamond
Pillar of the Community
United States
2656 Posts |
Posted 03/13/2025 3:59 pm
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| Most pieces of chopped webbing are irregular. Since the intrusive object forms a perfect bowtie with concave ends, this was most likely a bowtie clip derived from cent strip with normally-spaced holes. Most bowtie clips are derived from strip with improperly spaced holes. I've seen a number of examples over the years (the clips themselves and the impressions they leave on a coin). |
| | Forum: US Modern Variety and Error Coins |
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| Eisenhower Dollar 1976-1776 Crazy Stike Through Error-Please Advise
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mikediamond
Pillar of the Community
United States
2656 Posts |
Posted 02/26/2025 10:37 pm
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| Lots going on here. An in-collar double strike (second strike with a partially deployed collar). The coin didn't move between strikes. However, the obverse die did move, creating a "one-sided" or "obverse-only" double strike. The reverse shows very strong machine doubling. There is, of course, a massive struck-through error on the obverse. I'm not sure why a Brazilian coin is in the mix. |
| | Forum: US Modern Variety and Error Coins |
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| Collectors' Clearinghouse On Pause (Permanently?)
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mikediamond
Pillar of the Community
United States
2656 Posts |
Posted 02/18/2025 2:33 pm
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| Thanks for your guidance, Brandmeister. One of the reasons I started this thread is to reassure people that my health is fine and that no catastrophe has befallen me. A lack of new columns could have been interpreted as a sign that I was undergoing cancer treatment or experiencing a similar ordeal. |
| | Forum: US Modern Variety and Error Coins |
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| Collectors' Clearinghouse On Pause (Permanently?)
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mikediamond
Pillar of the Community
United States
2656 Posts |
Posted 02/18/2025 08:16 am
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| Subscribers to Coin World may have noticed that for the past few months my Collectors' Clearinghouse column has been filled with old material. I stopped sending new material because Coin World had fallen 4 1/2 months behind in their payments to me. If they ever come up with my back pay, and promise to pay me promptly in the future, I will resume writing my column. If they don't, I can still take pride in a successful tenure of 16+ years. In the meantime, I'm open to any and all writing and consulting jobs that could make use of my skill set. |
| | Forum: US Modern Variety and Error Coins |
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| 1942 Brass Cent Valuation
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mikediamond
Pillar of the Community
United States
2656 Posts |
Posted 02/08/2025 10:41 am
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| Quite a few overweight cents (3.3 - 3.5 grams) with elevated levels of tin or zinc are known from 1941. A few carry the date 1942. The most prosaic explanation is that these planchets are derived from rolled-thick "brass" cent stock. I have about half a dozen in my collection. My average purchase price was around $50. |
| | Forum: US Modern Variety and Error Coins |
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