They aren't the typical white milk spots you see on maple leaf bullion, but I'd still consider them as spots. Is that due to bad storage? If so, why does it seem so much more common on uncirculated franklins and silver Kennedys. How bad do these kill the value and can they be safely removed? They certainly hurts eye appeal!
I also have several BU Franklin halves with hazy or milk spots. Many of them are in original mint cello.
As far as I know, there is no method of removing them safely. You can dip them, but you will destroy the luster. If anyone knows what to do, I would love to hear about it.
The example coin in the link just appears to have splotchy toning, possibly from its storage environment. It looks cleaned as well. I have seen milk spots on Franklins in mint and proof sets, though, but that also happens with other denominations.
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