Weird Roosevelt Dime error.

Pennycase

Please help, I already have pictures being sent off to Fred Weinburg by my dealer, but, was curious if anyone else could possibly pick up on my description as to what type of error this is, it's on a 74 roosevelt dime, it is a rim error, on the very middle of the rim, all the way around, it seems to be sunken in, the reeding is the same as the other parts though, just as nice, when you look at the edge, you can see the Nickel composition on both sides of the rim, insead of only one part, and they are raised up compared to the copper part, they are even all the way around the coin, it kind of has a somewhat of a sandwhich effect to it... Please, any help on this, including value, so I know rather or not I should have it sent off...

sliderider

SO what youre saying is that looked at from the side, the edge looks like this:


-__/-

Sort of cupped, all the way around the coin? Some kind of damaged planchet error I would guess. It's hard for me to imagine how something like that would occur inside the dies.

bushmaster8

Sounds like you may be talking about a partial collar strike, commonly called a "railroad rim". If that is what it is, it is a legit error.

cladking

Is there any unusual porosity to the coin?

Acid can selectively leach copper from a clad coin.

errormaven

Yes, acid attack seems to be the most likely cause of what you're describing. The copper core is recessed between the outer Cu-Ni clad layers. If you examine the reeding it should appear abnormal, with a "scalloped" appearance.

eyoung429

This may be what is seen:





or

Cam40

railroad dime
i found one
the porosity on both sides suggests it was acid bathed
so it remains worth a dime.
nice to own an example though as a novelty

errormaven

<< <i>This may be what is seen:


Your cent is showing a different form of modification. This is an "encased cent" ("lucky token cent"). It was formerly fitted into an outer ring bearing some message. These cents typically show an edge that looks like a bicycle tire rim.

Conder101

If you put a clad coin in vinegar and leave it for a long period it attacks te copper core faster than the coppernickel layers and will eventually give you the result you describe.

Pennycase

Well, I have had two other dealers look at it so far, one of which I have been dealing with for a long while now, he was thinking about the possibility of acid when I first took it to him, but, I let him keep it for a week to study it more, and take the pictures of course, when I came back he said he couldn't find any traces that acid or any other kind of product could have been involved, the reeding is too good on it, it is pretty much perfect, we know it isn't anything that is in the breens encyclopedia, we have already spent quite a while searching through it, along with various other error books...I really don't know what the deal is, I don't believe it is a railroad error, he doesn't seem to think so either, the rim doesnt _/ ....It looks more like |_| ....If that makes any sense...lol

grip

Intresting,let us know what Fred says.
Al

Conder101

Is there reeding on the copper section?

Pennycase

Yeah, reeding just the same as that on the nickel.... just as nice looking

Conder101

Bingo, it's acid treated. The only way for there to be reeding on the copper it would have had to have been out the same distance as the coppernickels sections so that it could press against the collar. Afterwardsas the acid dissolved the copper it attacked the tops and bottoms of he reeds equally so hat as the diameter of the copper was reduced the reeding remained intact.

bushmaster8

Sounds like Conder's got it right.

FredWeinberg

I never rec'd the scan of the dime from anyone, so I can't
comment on it directly. However, it doesn't sound like a
partial collar - it sounds like a damaged/altered piece, but
without seeing a good scan of the side rim, I can't be sure.

Sorry.................

Fred