1941 cent with corrosion

[Mint State]

Hey everyone, I found a pretty sweet 1941 Canada cent, -even has some original red!- but there is some green corrosion spots on it... much to my dismay. Is this excellent coin now just worthless? I assume even if I keep it, in a few years those green spots will grow and grow anyway? Thanks for your help on this. I guess the bigger question is... is small corrosion acceptable? or just tossers. Cheers.

[Mint State]

So, this was my first post, and now I have looked around the boards, it occurs to me that perhaps I posted this in the wrong section, I see a discussion area for cents that may have been a better fit... at any rate, would it help smooth over my rookie move if I ask for a grade? Cheers.

[Bill in Burl]

I see just a tad bit of wear in the hair, plus the corrosion which will grow/deepen. As it is, ID say AU 50, maybe 50+, but details.