Hello Swaperbob
thank you for visiting my thread I'm realy happy in did't intrude with that mail but it was the only awy I knew how to get your attention,gladd it worked :)
so this is the story behind it .
they where part of a big collection I bought from a girlfriend of my niece.her grandfather had this collection for over 70 years.but for safekeeping he burried it in his garden.untill he got sick and had to got to hospital.so he gave it to his kin.but this girl knew notthing about them so she sold it off...to yours truely.
at that time I did not even collect, but that is a other part of the story. so all these coins where in old 2x2 with PVC plastic and rusted staples ...still got a few I did't unrap yet and need atribution still
examples


box they where kept in

because of the coin being big ,the 2x2 older had 2 stapels at the cornerz and bacause of the the 2x2 was to big
so the plastic was right on the face rubbing his cheek and shield on the obverse.
both sides where very yellow at first, so I thought it was silver plaque.but once I got acetone on it the yellow seemd to disapear so I carefully cleaned the areas affected,not doing any harm?
hairlines and scratches where already on the coin.
and to be truthfull I have plenty of coins affected in the same spots because of this pvc damage.and flips being overly big for the coin.
Nhow thats is how I got them and that is how I think the damage has occurred in these spots.
but I have to ask not to take this as the final evidence thoug.
as for specific gravity I'm not shure how to respond to that because I'm not shure what you mean
and I can read english so I could read your book but to be honest I'm not going to collect these ,its even a fluke that I own it.
but now I'm getting a clear diretion of what I want to collect so this just might be to make funds for what I realy want to collect.
however I know my appreciation does not pay bills,i still want to express them :D