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 Replies: 20,283 / Views: 955,428 |
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Bedrock of the Community
 United States
27041 Posts |
A fairly simple contest. Divided the longest dimension of your coin by the shortest dimension of your coin (but not thickness!). Highest ratio wins. For example, this Japanese 100 mon is 49.1 mm high by 32.5 mm wide, for a ratio of 1.51. A circular coin would total 1.00. A square coin, on the other hand, would not total 1 but rather 1.41 (the diagonal is the longest dimension, so it's square root of 2). If the corners are rounded it would be slightly less.  Let's see your oddball shapes! Inordinately fascinated by bits of metal with strange markings and figures
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Pillar of the Community
Australia
9701 Posts |
This is an odd shape so bit hard to measure, but I estimate the score at about 1.96, but Hondo can be the judge. I don't have it in front of me to measure, so just used a ruler on the screen.  |
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Pillar of the Community
Australia
9701 Posts |
Just remembered I have this one sitting in my junk pile (pretty sure it's fake). Was bought in a market in Sri Lanka. 4 3/4 stuiver VOC coin. 78.5mm long, 16.6mm wide at the skinnest point = 4.73  |
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Pillar of the Community
Russian Federation
5186 Posts |
  Olbia, AE "dolphin" coin, uninscribed 30x9 mm (by my previous calculations) Score: 30/9=3.33... |
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Bedrock of the Community
United States
27041 Posts |
Wonderful submissions so far - I'm loving it!
Inordinately fascinated by bits of metal with strange markings and figures
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Pillar of the Community
United States
1871 Posts |
Japan Tempo 2 shu  13.5mm x 8.2mm = 1.65 |
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Moderator
United States
193832 Posts |
Go fish!  |
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Bedrock of the Community
United States
27041 Posts |
Ok, it's been three days. I'm awarding the title to january1may for the "dolphin" coin. Although triggersmob's 4 3/4 stuiver VOC coin had a higher score, the self-admitted dubious authenticity of it makes the score questionable. Also, trigger hosted the last round, so january1may is declared the winner!  Inordinately fascinated by bits of metal with strange markings and figures
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Pillar of the Community
United States
6812 Posts |
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Moderator
United States
193832 Posts |
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Pillar of the Community
Australia
9701 Posts |
Quote:
makes the score questionable. Also, trigger hosted the last round, so january1may is declared the winner! The score is not questionable as I measured it, but the coin certainly is. Well done J1M. |
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Pillar of the Community
Russian Federation
5186 Posts |
This might be a hard one. Not sure if I'll have any takers...   On this 250 franc coin from the West African States (KM# 13, Numista 1797), the date is worn off - but it turns out that the exact year can be identified uniquely (out of the three issue years of the type) due to the bee privy mark (just visible at 4h on the obverse), which was only used on this type in 1996. Post a coin from a multi-year type on which the date is gone (worn away, off flan, or otherwise sufficiently illegible to be unidentifiable by itself) but can nevertheless be uniquely identified from other features! Points: 1 point per issuing year of the type (so a coin from a type issued with 10 different dates would count for 10 points), more points is better. Mintmarks do not count as different dates, but are allowed to be used as part of date identification. If no one posts a qualifying entry in two days, I will allow dateless coins from one-year types (where the date can be uniquely identified just because it's that type) to count for 1 point. I would really rather prefer entries from actual multi-year types, however. I know there are at least a few US coins where such determination is possible, some of them from rather long-running types - I wonder if I'll see one of those here! |
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Moderator
United States
193832 Posts |
Might be a tough one!  This is for participation. If the date were completely missing (I believe you can still see enough of it), the reverse gives away the year as 1976.  |
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Pillar of the Community
Australia
9701 Posts |
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Bedrock of the Community
United States
27041 Posts |
1851-O Three Cent. Although the final "1" of the date is visible, this series was minted from 1851 through 1873, so it could be either 1851, 1861, or 1871. However, New Orleans only minted these in 1851.   Inordinately fascinated by bits of metal with strange markings and figures
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Replies: 20,283 / Views: 955,428 |
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Posted 11/24/2023 11:52 pm
