NGC MS62 liberty $10 piece -- Is this a copper spot?

[stinkycheese1]

I didn't notice this rather large reddish spot on the coin before. It has another one near the 4 in 1894, but much smaller and much more faint. I took the picture of it with my digital blue QX5 computer microscope, so the image looks more silver than gold. I took the copper spot image at 60X magnification.

 

First, here's the picture of the overall coin. The copperspot is in the lower right hand corner. I've heard that a coin with a copper spot is a good sign its geniune, is this true? Not that it matters anyway, since it's in a NGC holder.

 

 

Then here's the picture of the spot:

 

Thanks much!

[Oldtrader3]

Looks like a copper spot to me. Many Coronet $5 $ $10 gold pieces have copper spots, probably because they could not alloy well prior to this date. It may have been due to lack of electrical, temperature controlled furnaces.

[michael]

Looks like a copper spot to me. Many Coronet $5 $ $10 gold pieces have copper spots, probably because they could not alloy well prior to this date. It may have been due to lack of electrical, temperature controlled furnaces. TRUE WORDS WELL SAID

 

 

 

a nice beautiful original coin........

 

no need to worry, it is just an original nice ms62 choice unc ten dollar liberty