Is this a normal color or artificial?

Shoot.......I don't think they're on the computer at the moment.........I'll look, though. Got a sneaky suspicion that I put them on a 'thumb drive' some time back, but I'll give it a go.
[and I'm out of town and away from the thumb drives]

 

Log in or Sign up to hide this ad.

Shoot......nothing here on the computer.......I must have cleared everything out. Sorry folks.

 

But I must say, they're quite remarkably similar to yours Jason.........

 

P&G had it right in one, with supporting help from @physics-fan3.14. That color on that date is a giveaway that it went into the washing machine at some point in time. I've got a variety of Lincolns that look like that, and I happen to like how some of them look, particularly as they cost me a whopping 1c, so I keep those pieces.

 

I wouldn't use the word "treated" - it was exposed. Treated sounds intentional, I don't think anyone would bother with this coin. It was exposed to something during its life and it toned, that's how all toning occurs. By exposure to something other than clean, dry air.

As I've always said, ALL toning is either market acceptable or not, regardless of how it formed. The debate over "artificial" or "natural" toning is cannon fodder and pointless. The people with cash in their hand will decide if a coin is MA or not.

 

I have many penny's like the one you have Great looking specimen!

 

Imho it looks like some sort of detergent was applied to this coin. Its almost impossible to tell exactly what, but my vote is going to be not natural.