I would be more concerned over the authenticity of the coin first. Too me something does not look quite right on that one.
To answer the above question of "What it is?" http://coinquest.com/cgi-bin/cq/coins?main_coin=1475 Or at least what it is supposed to be.
looks like it might be a plating bubble.
I have seen people using olive oil, just soak the coins the same way as in the water.
the Swedes did this on the 1,2 and 5 ore coins between 1952 and 1971. the designs were kinda basic, probably to get around the die wear problem....
Be careful here, demineralised water is the same as deionized water and is actually very corrosive to metals. I have done work on systems that...
I do remember reading about someone using a laser to reduce the appearance of scratches. But why don't you post a pic of the coin in question?...
They spent over 50 Billion to put on these Olympics, and now they cheap out and refuse to make the Gold metals out of Gold!!!. How much could it...
Looks like Hesse Darmstadt . KM 256 , 3 kreuzer, looks like the 3 is worn off, should be above the word "kreuzer"
I guess token is not the right word, it is one of the bangles the belly dancer would sew onto her costume.
Its a "belly dancer token" , what appears to be Arabic lettering is just scribbles. These have been posted here before. I have several of them myself.
1919
1870 is way too early for Manchukuo, that was not founded until 1932.
The crossed flags are from some Chinese coins of the early republic, what you have is probably what is commonly called a "fantasy" piece, the...
To me it looks genuine, but it also looks as if the edge/shape has been altered to make the coin perfectly round and the edge square, probably for...
I don't see anything near Xf, I would grade it at F at best.
25 paisa, oman, 1970. should be made of gold http://en.numista.com/catalogue/pieces50252.html
I believe that is from Argentina , 5 centavos
I believe what they had discovered was the sea route to India, by proving it was possible to sail around Africa. Significant because it bypassed...
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