I am not an expert but I think after comparing the pictures between yours and the example on Numista. Along with being underweight I will have to lean on the not real side. But I wouldn't make a complete call off what I have to say. I would look at other people's opinions too.
Personally I would say it's real, as your coin in comparison to the one on Numista has a lot of wear around the borders, which would certainly account for the differential in weight.
I wonder why anyone would bother faking a copper coin and not get the weight right? For silver it makes sense because of the high density of silver compared to other metals, but if you fake a copper coin you'd probably still use copper. So the weight difference shouldn't bother you imo
Tried some Googling and from what I could find values for both diameter and weight seems to vary greatly for this coin. I guess they weren't that accurate when making them?
Cita: hagglundI wonder why anyone would bother faking a copper coin and not get the weight right? For silver it makes sense because of the high density of silver compared to other metals, but if you fake a copper coin you'd probably still use copper. So the weight difference shouldn't bother you imo
I'm not worried about the weight difference. That can be explained by the wear and a the corner missing. I'm more concerned about the slight differences in the design. I'm not sure how exact the details should remain were from year to year. For example, there are missing rows of feathers on my coin, and the staff in the eagle's left hand is missing the cross, the 7 is styled different, and the design that separates the date is different in spacing. The coin is also slightly thicker on one side.
But the overall quality is what I would expect and the wear seems right. And I agree that it doesn't seem likely that someone would fake a copper coin with a mintage of 36,000,00+.
Your coin does not raise any questions regarding its originality. It looks OK.
There were many variants of eagle and crown in this time period. Weight also fluctuates greatly around the average 51,19 g. The reason for that was at that time nobody controlled the weight of each copper coin mint. There were 16 Roubles worth of copper 5 Kopeck coins produced from 1 Pood of copper. A Pood was an old Russian measure of weight equal to 16,38 kg. Thus, if you divide 16380 g by 320 coins you'll receive an average weight of 51,19 g. In reality one coin could be 56-57 g and another 45-46 g and both would be totally legit, if from 1 Pood of copper a total of 320 coins were produced.
I collect coins and tokens which circulated in Africa from 18th century to 2000. I sell about 7000 illustrated world coins from http://www.avscoins.com.
Cita: AndreyYour coin does not raise any questions regarding its originality. It looks OK.
There were many variants of eagle and crown in this time period. Weight also fluctuates greatly around the average 51,19 g. The reason for that was at that time nobody controlled the weight of each copper coin mint. There were 16 Roubles worth of copper 5 Kopeck coins produced from 1 Pood of copper. A Pood was an old Russian measure of weight equal to 16,38 kg. Thus, if you divide 16380 g by 320 coins you'll receive an average weight of 51,19 g. In reality one coin could be 56-57 g and another 45-46 g and both would be totally legit, if from 1 Pood of copper a total of 320 coins were produced.
