If all three photos are of the same coin, there is something very drastically wrong with your lighting setup or your USB camera or both. I suspect...
I agree it is EF ( XF) details, cleaned, damaged
It might help in evaluation if you gave the technical data also.
Osmium should be kept sealed, as it can form osmium tetraoxide when exposed to air ( oxygen), a very very poisonous compound. I used it when I was...
http://www.bloomberg.com/news/articles/2015-09-08/south-africa-gold-industry-fades-as-margin-squeeze-erodes-output?cmpid=yhoo Doesn't look good....
Alan Herbert is quoted as "Mint tolerance for setting dies is up to seven degrees per die, so any example with a lesser amount is not collectible....
I blame most of these threads on cheap Chinese USB microscopes.
If you have such a huge profit margin, I would resubmit it until I either agreed it was Q/C, ran out of profit or I received a clear grade.
Appears that Ebay has worked something out, no longer getting that warning on firefox.
toned copper, lightened up photographically to show details.
Separate names with a comma.
