The area around the mintmark is not an additional one due to its size and irregularities. There are no other RPM impressions on it. To get a true...
Can you tell if it is a small lamination of the copper foil? Likely not but about the only remaining possibility. Jim
The silver might revert, but the method would be extreme enough to ruin the coin. The crystallization might be the major part holding the coin...
This is probably the most common one for 63 year. I don't see one in yours, sorry, Jim [ATTACH]
I used a lot of xylene to watermark postage stamps... says a lot , Jim
This is a nice write-up on crystalization https://en.wikipedia.org/wiki/Crystal_growth
The way I started with it, is that I took one of the mylar 2x2 flips , set the heat to lowest position and starting at the fold end, I started...
Mylar has been used for many years for long term storage . Any vapors that are released in sealing with approved equipment are considered safe for...
Many people in the US do not know how much a gram really happens to be compared to an ounce
I have used one like this on mylar 2 x2 for years. Never any problem Works on other plastic as well....
Acetone and xylene vapors are very flammable, and can have neurological effects, so keep ventilation active when working in closed space and ask...
There are some limits on buying and selling you can read or have already in the classified forums. The warnings are because there are/have been...
Sorry mistyped :{
I do not think so, I think it is Die deterioration damage, but since this is the obverse, you can look at the "L" in liberty and if it is very...
[ATTACH] 1942 Large S and 1942 Small s Jim
Keep All Operations Secret in case you forgot. Jim
I will ask, but just to confirm, not say something bad. 1. Do you have a calibration weight that came with the scale ( most likely no) 2. Is the...
I would start testing first on a snip of the cloth to see if the remains of the glue would come off. order: water->alcohol-> acetone-> (if...
Some of the moderators are not in the US, so they are on at alternate time. some are retired collectors and some have jobs still, so its tough to...
We are more like cats than dogs, we just show up.
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