| Author |
 Replies: 19 / Views: 3,839 |
|
Valued Member
United States
321 Posts |
Edited by mattbrowning7
10/13/2010 09:46 am
|
|
|
|
Moderator
 United States
23731 Posts |
I would love to own that can!
|
|
Valued Member
United States
438 Posts |
Interesting note - Platinum was worth less than gold in those days. People would hollow out $20 gold coins and refill the void with platinum which has a similar specific gravity.
ACE Mike
|
|
Bedrock of the Community
United States
14454 Posts |
if Gold still circulated it probably would still be worth more than platinum now also
|
|
Valued Member
United States
497 Posts |
Very interesting and thanks for sharing the link matt
|
|
Valued Member
Austria
194 Posts |
I know, this thread is still a few days old.
but I also studied this coin.
in my oppinion, this coin is one of the patterns, struck by or in order of Justus Erich Bollmann.
Bollman was born in germany an moved to philadelphia around the year 1797.
Here he studied the "new" metal platinum. He also was interested in platinum as a curreny around the world and he also shared his ideas at the congress of vienna (1814/15).
The word "platina" is engraved on this coin, not "platinum" as it was usual in england, and also in america, during his days.
"Platina" was used in germany until the 1820´s or so.
So this seems to be engraved by someone who must be also of german orign.
of course, it would be great owning one of theese coins, but I fear this is impossible
Edited by platinrubel
09/14/2012 2:13 pm
|
|
Pillar of the Community
United States
2540 Posts |
Actually a few years old.
Still a great thread.
|
|
Valued Member
Austria
194 Posts |
yes and only three pieces known worldwide.
so I think its the rarest us-coin?
|
|
Pillar of the Community
United States
1757 Posts |
Its a contemporary counterfeit made in South America or metal from this region - I can prove it.
John Lorenzo
United States
|
|
Pillar of the Community
United States
1757 Posts |
Yes ACE MIKE your thoughts are on the proper wavelenth.
|
|
Valued Member
Austria
194 Posts |
believe me, this is no counterfeit from southern america.
one of this pieces is known since 1861 (see A description of ancient and modern coins: in the cabinet collection at the Mint of the United States by James Ross Snowden)
bollmann got the material itself from columbia, as far as I know.
and that he struck some pattern coins in phillie, thats proof.
silver was less worth than platinum, so why should be this coin faked with a more expensive material?
to fake gold coins with platinum at theese days, okay but a silvercoin?
Edited by platinrubel
09/15/2012 2:39 pm
|
|
Bedrock of the Community
United States
14454 Posts |
Quote:
Its a contemporary counterfeit made in South America or metal from this region - I can prove it. Care to elaborate? I tried to find out information about these coins when they were circulation on allot of the coin forums a few years ago and didn't see anything that would suggest that they were counterfeit so I am interested in what proof you may have to the contrary |
|
Bedrock of the Community
United States
10045 Posts |
Quote:
People would hollow out $20 gold coins and refill the void with platinum which has a similar specific gravity. I'm curious how this would be accomplished, since platinum melts at 1200 degrees higher than gold's melting point--wouldn't that pose difficulties to fill a hole in a gold coin?  Just wondering out loud. |
|
Valued Member
Austria
194 Posts |
to find out more, you need the old books and the archieves.
there you will find all the information.
F. Kapp: "Justus Erich Bollmann. Ein lebensbild aus zwei welttheilen" (1880)
This book includes letters from bollmann about his work with platinum and his ideas as a currency.
@DVcollector: I never even found or saw one of theese hollowed fakes.
I think this is kind of legend.
Edited by platinrubel
09/16/2012 12:10 am
|
|
Bedrock of the Community
United States
17884 Posts |
Quote:
@DVcollector: I never even found or saw one of theese hollowed fakes.
I think this is kind of legend. I've seen one in a museum collection but it was LONG ago and I don't remember the museum. It may have been in the Smithsonian collection. Quote:
I'm curious how this would be accomplished, since platinum melts at 1200 degrees higher than gold's melting point--wouldn't that pose difficulties to fill a hole in a gold coin? the coin would be cut in half through the thickness, the center would be hollowed out and a disk of platinum would be put in the hollowed out space. |
|
Valued Member
Austria
194 Posts |
@conder101 aha, so this is a fake like a goldplated platinumcore. okay, this was also in europe usable. not being filled with melted platinum - this would be not possible because of the different meltingpoints. but this kind of fake is of course known. btw: here are two of my new purchases   theese are two spanish contemporary counterfeits, struck in platinum and thin gilded. Edited by platinrubel
09/16/2012 05:34 am
|
| |
Replies: 19 / Views: 3,839 |
Posted 10/13/2010 3:59 pm
