Lens Diagnosis: What's on the lens? Wear and Tear? Fungus?

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departingYYZ
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Lens Diagnosis: What's on the lens? Wear and Tear? Fungus?
4 months ago

Hi all,
I have a four year old Nikkor 35. 1.8/G lens and just inside the glass of the lens near the edge of the barrel you can see that there are a bunch of what look to be individual dots or bubbles or maybe scrape marks?
Could anyone take a guess at what it might be? Is it just wear and tear or could it possibly be fungus?
Image quality doesn't seem to be affected at all.
Thoughts? 
Thanks

You can see it inside on the top left of the barrel.

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