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 Replies: 35 / Views: 4,040 |
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Pillar of the Community
United States
9395 Posts |
There are also modern novelty coins: (3rd) Republic of Poland -- 10 zlotych, 2008:   (center is glass or plastic) |
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Pillar of the Community
United States
9395 Posts |
Another from Poland, with hologram: (3rd) Republic of Poland -- 10 zlotych, 2009:   |
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Pillar of the Community
United States
9395 Posts |
Coin with tantalum center: Republic of Kazakhstan -- 500 tenge, 2009:   |
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Pillar of the Community
United States
9395 Posts |
Niobium center: Republic of Austria -- 25 euros, 2011:   |
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Pillar of the Community
United States
9395 Posts |
Plastic coins from Transnistria: Pridnestrovian Moldavian Republic [Transnistria] -- 1 ruble, 2014:   ------ Pridnestrovian Moldavian Republic [Transnistria] -- 3 rubles, 2014:   ------- Pridnestrovian Moldavian Republic [Transnistria] -- 5 rubles, 2014:   -------- Pridnestrovian Moldavian Republic [Transnistria] -- 10 rubles, 2014:   |
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Pillar of the Community
 United States
6514 Posts |
@pepactonius Having not taken chemistry in high school I've never heard of niobium. https://en.m.wikipedia.org/wiki/NiobiumCool coin. Says that niobium has comparable hardness to titanium. Impressive. Check out my counterstamped Lincoln Cent collection: http://goccf.com/t/303507Edited by chafemasterj
01/09/2021 4:07 pm
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Pillar of the Community
United States
9395 Posts |
Gimicky Canadian coins: Canada -- 25 dollars, 2015:   --------------- Canada -- 3 dollars, 2017:   ----------------------- Canada -- 20 dollars, 2018:   -------------------- Canada -- 20 dollars, 2019:   |
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Pillar of the Community
United States
9395 Posts |
Curved coins from the US: United States -- 5 dollars, 2019:   |
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Pillar of the Community
United States
9395 Posts |
Quote:
Having not taken chemistry in high school I've never heard of niobium. When I was little, it was sometimes called Columbium. |
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CCF Master Historian of USA Commemoratives
 United States
12313 Posts |
I don't recall ever adding anything weird to my collection - everything has been sensible and according to plan!  In terms of odd, however, I consider these coins a bit odd. They are, after all, missing a key component of their planchet! Something you don't see everyday!    I discussed details about the set previously; you can read them here: Bicentennial Clad Layer Missing Error Coins. Collecting history one coin or medal at a time! (c) commems. All rights reserved.
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Pillar of the Community
Australia
3831 Posts |
Ah the shu coins. It's a neat choice! Believe it or not, in 1500s Japan was supplying about 30% of the world's silver supply! This is a coin issued in 1863 in Akita Prefecture - 4 monme 6 bu ginban  I've been trying to get my hands on other Japanese silver coins but they do get pretty expensive. |
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Pillar of the Community
United States
7963 Posts |
Very interesting items!
Makes me feel very narrow-minded in my numismatic aims.
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Moderator
United States
189767 Posts |
Quote:
They are, after all, missing a key component of their planchet! Something you don't see everyday! Excellent!  |
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Moderator
Canada
10463 Posts |
I collect this 'odd' series... all devices are incuse, the fields are the highest points on the coin (outside of the rims). The 1, 2 and 5 ore coins are similar designs.   "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
United States
6514 Posts |
Here's one I bought mostly because it looked cool but it could be argued that it's odd.   |
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Replies: 35 / Views: 4,040 |
First Page
Posted 01/09/2021 3:52 pm
