As above. I pulled one out of a roll from downtown Toronto and it was the same colour as the usual CuNi. It has the large P mintmark, but has not tarnished like the other ones I have found.
I only found it because the roll was all US, so I looked through them for dates. When I found it I checked several times to make sure it was not 1948.
If it has the special mint mark, it is silver. The mint mark was put there to make them easy to pull from circulation. If the nickel is in good, untarnished condition like you suggested, it is really, really hard to tell by color the difference from CuNi.
I think all 1943 are silver but not some of the 1942's when the switchover occured - but as horgad stated all nickels with the big mint mark are silver. I'd like to see one that is not tarnished - might have some collector value too??
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It would have collectors value to it. Would you say it grades AU? I would guess $2 or so in AU. If you get into the MS then I have guess closer to $10.
-SWUSC
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