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Post Your Aluminium & Zinc Coins .

 
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 Posted 01/14/2019  04:32 am Show Profile   Bookmark this topic Add Dorado to your friends list Get a Link to this Message
Please show your aluminum & zinc coins!



Edited by Dorado
01/14/2019 7:41 pm
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 Posted 01/14/2019  04:39 am  Show Profile   Check NumisRob's eBay Listings Bookmark this reply Add NumisRob to your friends list Get a Link to this Reply
Great idea for a new thread! Here goes!

France 1 Franc 1959:


Spain 10 centimos 1959:


Cambodia 50 sen 1959:
Edited by NumisRob
01/14/2019 04:41 am
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 Posted 01/14/2019  09:29 am  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply
Why did we not see aluminum coins until the 20th century?
From Wikipedia:
Before then, aluminum was more valuable than silver or gold:
the cost to produce the small amount of aluminium made in the early 19th century was very high, higher than for gold or platinum. Bars of aluminium were exhibited alongside the French crown jewels at the Exposition Universelle of 1855, and Emperor Napoleon III of France was said to have reserved his few sets of aluminium dinner plates and eating utensils for his most honored guests.
Production costs using older methods did come down, but when aluminium was selected as the material for the cap/lightning rod to sit atop the Washington Monument in Washington, D.C., it was still more expensive than silver.[3]


In 1886, American Charles Hall, and Frenchman Paul Heroult independently invented a cost effective electrolytic process for refining aluminum. Hall's process was quickly commercialized in 1888 and became the first Alcoa factory.
Edited by tdziemia
01/14/2019 09:49 am
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 Posted 01/14/2019  12:40 pm  Show Profile   Bookmark this reply Add IndianGoldEagle to your friends list Get a Link to this Reply


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 Posted 01/14/2019  12:49 pm  Show Profile   Bookmark this reply Add IndianGoldEagle to your friends list Get a Link to this Reply


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 Posted 01/14/2019  1:41 pm  Show Profile   Bookmark this reply Add pepactonius to your friends list Get a Link to this Reply
My oldest aluminum coin:

Dakar Chamber of Commerce -- 50 centimes, 1920:

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 Posted 01/14/2019  3:39 pm  Show Profile   Bookmark this reply Add Dorado to your friends list Get a Link to this Reply

Quote:
My oldest aluminum coin:


Very nice!
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 Posted 01/14/2019  4:34 pm  Show Profile   Bookmark this reply Add mysilveryears to your friends list Get a Link to this Reply
It will be interesting to see what the oldest al-you-min-ee-yum coin shown here turns out to be. See mine below.
And this could turn out to be a VERY large thread.
Also, I do believe that 1952 Peru 2 c. shown above is zinc, not Al.
Zn coins could comprise a thread unto themselves. They are possibly the most challenging of modern coins to collect due to the ease with which that metal deteriorates.




edit // Here is another German States 1920's coin in Al :


Edited by mysilveryears
01/14/2019 4:40 pm
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 Posted 01/14/2019  7:15 pm  Show Profile   Bookmark this reply Add Dorado to your friends list Get a Link to this Reply

Quote:
Also, I do believe that 1952 Peru 2 c. shown above is zinc, not Al.


You are right! The metal is zinc.

We will include in this thread zinc coins also .

Zinc coin
1921 German Empire.
10 Pfening.



Edited by Dorado
01/14/2019 7:53 pm
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 Posted 01/15/2019  01:18 am  Show Profile   Bookmark this reply Add owatchman to your friends list Get a Link to this Reply
2004 Nepal 50 paisa

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 Posted 01/15/2019  01:49 am  Show Profile   Bookmark this reply Add Dorado to your friends list Get a Link to this Reply
Very nice!
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 Posted 01/15/2019  03:55 am  Show Profile   Check NumisRob's eBay Listings Bookmark this reply Add NumisRob to your friends list Get a Link to this Reply
1984 India 20 paise:


1984 French Polynesia 5 Francs:


1988 Albania 10 Qindarka:


1990 China 5 fen:
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 Posted 01/15/2019  10:12 am  Show Profile   Bookmark this reply Add jbuck to your friends list Get a Link to this Reply

Quote:
We will include in this thread zinc coins also .
Nice save!
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 Posted 01/15/2019  4:03 pm  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply
I thought I had a slightly earlier Al coin than pepactonius, but I was wrong. I can match the 1920 Senegal token with this 50 pfennig 1920 notgeld issue from the German city of Soest:


Edited by tdziemia
01/15/2019 4:04 pm
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