What is this spot?

Discussion in 'Coin Chat' started by Dtort, Dec 4, 2021.

  1. Dtort

    Dtort Member

    In an old coin roll, came across this lovely 1944 cent marred by the spot on the reverse. It looks like a dried adhesive (maybe) but don't know what it feels like as I am reluctant to touch the surface.
    Has anyone seen anything like this before, and can it be removed? I've had good results with acetone on other coins, but not with a copper one as shiny as this.
    I'm hoping to rescue this - its a really nice specimen!

    Thanks in advance for any ideas!

    WIN_20211203_23_33_17_Pro.jpg WIN_20211203_23_34_23_Pro.jpg
    Penny Luster likes this.
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  3. SensibleSal66

    SensibleSal66 U.S Casual Collector / Error Collector

    Darn!! That is a spot. Don't let Mom see that!:jawdrop::smuggrin:
    Seriously, is it raised ? Does it look like a stain or something else? More Pics please. Thanks.
  4. lordmarcovan

    lordmarcovan Eclectic & Eccentric Moderator

    I'm not sure, but it might be "end roll" toning. That circular stain might have resulted from part of the end of the roll the coin was in being open, thus partially exposing that area and causing it to tone.

    But if it's an end roll toner, it's rather unusual- I've never seen one with that pattern.

    On the other hand, it could also just be a mystery stain of unknown origin.
    SensibleSal66 and masterswimmer like this.
  5. masterswimmer

    masterswimmer Well-Known Member

    That explanation definitely sounds like it could be, possibly, not sure, absolutely, indubitably, without a doubt, most certainly, questionably, something. ;)
    Spark1951, ldhair and SensibleSal66 like this.
  6. Dtort

    Dtort Member

    Here you go... various angles and closeups... View attachment 1403612 View attachment 1403614 View attachment 1403615 View attachment 1403612 View attachment 1403614 View attachment 1403615
    Last edited: Dec 4, 2021
  7. Dtort

    Dtort Member

  8. Dtort

    Dtort Member

    and some more closeups:
    WIN_20211204_08_23_00_Pro.jpg WIN_20211204_08_22_45_Pro.jpg WIN_20211204_08_22_19_Pro.jpg WIN_20211204_08_22_05_Pro.jpg
  9. desertgem

    desertgem MODERATOR Senior Errer Collecktor Moderator

    If the coin had been in a PVC type of holder, it could have been a touch of residue that some one decided to just put it into a reject roll. I personally have never had acetone react badly on copper metal itself. If the residue is chemically reactive itself, then yes, it may make it worse. Jim
    Oldhoopster likes this.
  10. Lev99

    Lev99 Member

    I had a mint(?) or commercial roll one time of Lincoln cents from the 1980s all bright and shiny, had a big glob of dried glue on the end and a little trail from the edge of the roll paper. Like the paper roll itself was glued for some reason. Stain reminds me of that glue glob, but now that I think about it, not sure why they’d glue the roll. I always thought the rolls were kind of crimped but not sure about that now either…
  11. Dtort

    Dtort Member

    The roll was crimped, but this was not one of the end coins. Since it was a roll of mixed dates, so who knows where this coin was before.
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