Need Your Opinion On What Happened To These Coins

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Author	Replies: 5 / Views: 1,270
jagoedo Valued Member Belgium 54 Posts	Posted 06/16/2014 02:37 am I recently came into possession of 2 Belgian 20 francs dated 1935 They are not rare and pretty common. My first impression would be that they are fake (due to the bubbly damaged surface) but all the measuremens are fine (also did the specific gravity test). I also don't find any castmarks on the edges. These coins are pretty common so I wouldn't know why would anyone bother to counterfeit them. Those are .680 silver. So if these are not fakes (not yet sure), I was wondering what could have damaged the surface like this. Maybe some experts here could help me out. Edited by jagoedo 06/16/2014 02:40 am Report this Post to the Staff

Numismat Pillar of the Community United States 1666 Posts	Posted 06/16/2014 03:59 am Do you see any evidence of a loop or something that may have been soldered onto the edge and removed? I commonly see this bubbled look on silver coins that were exposed to the high heat of soldering. Report this Post to the Staff
jagoedo Valued Member Belgium 54 Posts	Posted 06/16/2014 04:23 am The edges and the rims are pretty clean. Could it maybe be a reaction with some kind of cleaning substance? Edited by jagoedo 06/16/2014 04:54 am Report this Post to the Staff
austrokiwi Pillar of the Community 2087 Posts	Posted 06/16/2014 06:42 am I have some old thalers with such damage......one I recall Came from Israel and had come out of the ground.....I had to clean it( Acetone and distilled water only. When I freed it from the red dirt it was caked in it had very similar damage to what you have on your coins.....I think it is where the copper has been corroded away Report this Post to the Staff
zxcccxz Pillar of the Community Canada 5417 Posts	Posted 06/16/2014 1:47 pm it's corrosion. Likely from being buried. Report this Post to the Staff
jagoedo Valued Member Belgium 54 Posts	Posted 06/17/2014 02:54 am Great. Thank you all for the response. At least I know what could have caused this :) Report this Post to the Staff
	Replies: 5 / Views: 1,270

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