43's are usually very well stuck. The only weakness I notice is sometimes on the reverse wheat stalk lines but some of that maybe due to die wear.
How about a famous 1919?
.
wood
1919
LOLOLOL As you can see, I collect multiples of every year and mint. A simple PDS collection is not enough where there's so many different looks...
Bah, if you could go through my collection you wouldn't say acetone rinsed coins don't look "normal". I have yet to see any adverse effects caused...
Nice pickup for 15 bills!!!
Of course, no date set is complete without some wood!
Another tinges of red example...love these.
DOH! I missed 1917.
Some mild wood....
One of my favorite coins! In an NGC AU-58 holder.
..
...
1918
Quick acid bath? You'd need concentrated mineral acid to remove the copper layer. There's nothing quick (or safe) about it. Telling copper cents...
Keep in mind that oil is NOT soluble in acetone. Try mixing CoinCare (or other oil) with acetone in a clear, glass container to see for yourself....
You seem to forget, air is loaded with water. By rinsing it with water you've saturated the surfaces. Leaving it out in air simply allows it to...
Yep, you're crazy when it comes to acetone and copper. LOL :D As you know, I've used it for decades without a single problem. Rehydrating surfaces...
Separate names with a comma.