1909 AU, about a $15 coin.
On a WAM the FG should be closer to the memorial, looks like a normal CLAM to me. Sometimes that little gap shows between the A and the M on a CLAM.
The image on the obverse is reversed, you're first clue that this is damage and not an error.
Tough, though coin in MS grades....finding one with red is very difficult. I looked for years too.
Sorry, no it won't. You have to use an acid-thioureas dip to remove that.
Desirving grade, I bet that's a sweet coin in hand.
In first.....at least until the next round. :D LOL Thanks Dick
:D ROFL...you stubborn old *$(*&#^#^! :p As I've told you a million times, what you witnessed was a copper coin with altered surfaces OR some...
Agreed, definately large.
Analytical chemistry is not magic, I know, I do it every single working day. They cannot detect something that is not there. VG was designed to...
Come on Doug, the fault is with a poor quality of acetone, it's NOT acetone itself. If someone keeps acetone on their shelf for 10 years and uses...
I'd like to see the full paper, the little tidbits on the web don't tell us much of anything. However, I did google the first author, he looks to...
No, that was VERDI-GONE, not VERDI-CARE. Nonetheless, it made me laugh because VG would have definately been 100% undetectable using their...
People don't generally leave a container of acetone open and exposed "water vapor". I really wouldn't be concerned unless the container was stored...
Don't discount yourself! I've read your posts, you know a lot about chemistry and I always like your posts! :D
Isopropanol is a poor solvent for dissolving oil too. The ProPar will do a better job since both oil and ProPar are non-polar.
Actually, oil is almost completely insoluble in acetone. Take a clear, glass container, mix equal proportions and see what happens.....you'll get...
The only acceptible substitute for xylene would be toluene. However, it has a MUCH stronger odor and is generally more obnoxious than...
Thanks for using VC! That's exactly what the product was designed for!
The PCGS sniffer might be able to detect the surface conditioner.....assuming they have added VC to their library. A rinse with water or acetone...
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