1985-D Double Die

Sweet. Welcome to the forum. That's a zinc coin you should at least put it in an air tight container.

Looks legit to me Kid.

Here is a tip, a piece of paper between the coin and light source. You will get lots less glare. I see the split serrifs and think it could be but there is also md.

Might be a doubled die. Try diffusing the light. A piece of standard copier paper or what have you works.

Not a doubled die in my opinion. A plating issue. I have or had some for the same date/mm.

Not from what I can see. I see doubling that looks deceptively like hub doubling. It actually fooled a few specialists in the 1980s until they reversed themselves on what it was. I examined 1985-D cents with this effect in 1986 and determined them to not be hub doubling.

Look at the S of TRUST. The bottom loop at first looks something like hub doubling but the primary image on top is of greatly reduced diameter and appears to "cap" the lower underlying portion of the S. This "capping" is a diagnostic to keep in mind.

If it was a doubled die, the primary would be fully formed.

I'm seeing this effect in all your images to a greater or lesser degree but nothing that is typical of split serifs per se.

This effect is due to the plating flowing toward the rim at a different rate than the metal of the zinc core. I was only able to find it on early die state coins but that could have been due to it only being on EDS coins that I had on hand. It should not be confused with plating split doubling, a term I coined in the 1980s to describe plating that was stretched so far during the strike that it often pulled away from design elements leaving the zinc core exposed. However, it could go hand in hand on some specimens.

You can probably find this on other dates but I found them on 1985-D cents most probably because I went through thousands of them.

Now with that said, my analysis is based on your images which quite frankly could be better. I could change my mind if later images suggested that was something else there other that what I think I'm seeing.

Could it be "ejection doubling?"
John1