Salt, tin, and distilled water to clean coins

OK. I have 2 74 s's with that marker. So I wasn't sure.

 

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Does that look like a RPM to you?

 

Here's an example of conserving (cleaning) a coin brings out some unwanted features. This particular coin was professionally conserved and graded by one of the TP companies. I don't personally think the coin was improved very much but it is what it is. Keep in mind that these photos were take with a cell phone with absolutely no in depth lighting concerns.

Photo #1 shows a faint line across the top of the 'horse' from two o'clock to 11 o'clock. Photo #2 (the conserved coin) shows the line much more prominently. So you never really know the outcome from your conservation attempts.

Photo #1



Photo #2

 

Not an RPM because that would be the mint mark that was repunched, and not the #4 digit. The 2 coins that I have, have the EXACT marker as shown.

As for the above coin, they may have gotten rid of the verdigris.

 

Yes, after the distilled water soak, I found an almost invisible white spot right on the side of Lincoln's nose on what I thought was an AU 1961 coin! I almost missed it until I turned it sideways. So disappointing. Oh well, I'm learning. I'm soaking some of my older wheaties that still have lots of detail, maybe a little copper color left. Well see!