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Plated or a genuine error coin?


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#1 gxseries

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Posted 19 February 2017 - 11:16 AM

Went and got this off ebay. This was described as a white metal error coin. The original coin is a bi-metal coin.

Some pictures

compare1.jpg

compare2.jpg

compare3.jpg

I did some weight test comparison but it seems to be within weight tolerance of all the other similar 10 ruble coin that I have. The edge is to show the color difference sandwiched between two genuine coin.

My question is, do you think this is a plated coin or a genuine wrong planchet error coin.

 



#2 Art1.2

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Posted 19 February 2017 - 11:50 AM

Nice catch. I really have no idea but assume you've checked your resources on the existence of such a coin. Please keep us updated on what you learn.

#3 ccg

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Posted 20 February 2017 - 02:37 AM

I'm putting my money on plated, or perhaps just coated in mercury. Highly unusual to have another planchet of the same specifications.



#4 extant4cell

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Posted 20 February 2017 - 07:11 AM

For curiosity's sake, we can see how this auction will go through with 50 and 10 roubles in same metal (as claimed by seller). I am not into recent currencies, but to me it looks like a highly desirable "novodel"... 4 days left... https://meshok.net/i...года_лмд

and another one: https://meshok.net/i...

and this one: https://meshok.net/i...лый_цвет

for rare coins the starting price is surprisingly low... that makes me think twice...



#5 gxseries

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Posted 09 April 2017 - 05:01 AM

I returned the first coin. Took a lot of effort to convince this cannot be genuine. Guess what? The seller still continues to offer it.

 

There was another coin that had me interested. This looked like it had to potential to be struck on the 1992 100 ruble planchet. I decided to see it in hand

 

compare4.jpg

 

compare5.jpg

 

compare6.jpg

 

Weight wise for all the coins used

 

1991 10 ruble (normal) : 6.02g

1991 10 ruble (plated silver?): 5.91g

1992 50 ruble: 5.91g

1991 10 ruble (switched alloy?): 6.08g

 

You can see that the weight test is not reliable as the weight of these coins have a huge variance.

 

The surface just does not look right. At best, it looks like it is heavily cleaned. But the color and toning does not look right! Gold just looks too bright for brass and nickel copper just does not tone in such a funny color. Lastly the dot is something that just cannot happen unless it's plated.

 

 

Honestly I'm that tempted to put a scratch through the coin to demonstrate that it has been altered but I'm not too keen on throwing my money out. I've lost on shipping but this helps me keep in touch of the modern counterfeit / altered coins sellers would try to push through.

 

Your opinion?



#6 Art1.2

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Posted 09 April 2017 - 11:34 AM

I wouldn't have any idea as I don't follow these coins at all, but your work is admirable. The counterfeit markets are ever expanding and provide an interesting "detective" area for hobbiests. Unfortunately they can also provide a big trap for unwary purchasers. Keep having fun and keeping us in the loop on these things.






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