ldhair

It would be cool to see the reverse but I wonder if all of the coin was coated with something many years ago. 
Glue of some type is probably the best bet. If I had the coin, I would try a bath in water first and see if that takes any of the yellow away. If not an acetone bath would be next to see if there is any change. Any of this should be done without ever touching the surfaces of the coin with anything. No Q-Tips or rubbing of any kind. Conservation is not something most should mess with. If you get it wrong you kill the looks of the coin. 
The cost of sending the coin in for conservation and grading is much of the value of the coin. 
 

They look cleaned to me.

1880-S half eagle, ex-John Jay Pittman collection, now NGC graded AU 55:

I had the same thoughts a year or two ago. I was posting a few threads each week with what should have been fun topics. They failed. Few members bothered to post. Probably because we have so few members that ever post. We have lost several members because of the actions of a member or two that could not stay on topic. They had to post long off topic garbage in every thread and pretty much killed the threads. I'm sure most here know who I'm talking about. No need for names.
Another thing that hurts is that we lost the dealers that posted here and shared some fun information. They gave up on this site. Maybe because of the lack of moderation. Someone can insult others with all kinds of nasty words and never get banned. 
I'll stop there. 
 

Unfortunately, it may not be possible to determine whether a coin has been "cleaned" just from photos. One has to look at the coin in hand in good light, from various angles. The second and third pieces do appear to have an unnatural shine, perhaps from being polished. 
    I have a custom registry set that attempts to depict and describe different types of "cleaning" on various coins. See Characteristics of "Cleaned" Coins - Custom Set (collectors-society.com).

@Just Bob and @ldhair you make very valid points.  And, you two are some of the good ones here.  I agree that we SHOULD have an area where true newbies can post their items and get feedback.  
I also agree that we have some that routinely post here that are determined to be nothing more than a distraction.  We know who is notorious for getting threads off topic or making them toxic.  We can't block them from the board, but we can ignore them if it gets out of hand.  Also, let's bump Numismatically valuable threads and let the bad ones sink (we seem to always do the opposite here).
I share in the frustration, and I am hopeful that those that want to REALLY study numismatics can band together and have meaningful discussions.  This may mean that we have to self-moderate, and call people out for getting your threads off topic (and possibly just ignoring others)... but I think we could bring more value to this place if we have the right level of commitment by the members here.  

I had the same thoughts a year or two ago. I was posting a few threads each week with what should have been fun topics. They failed. Few members bothered to post. Probably because we have so few members that ever post. We have lost several members because of the actions of a member or two that could not stay on topic. They had to post long off topic garbage in every thread and pretty much killed the threads. I'm sure most here know who I'm talking about. No need for names.
Another thing that hurts is that we lost the dealers that posted here and shared some fun information. They gave up on this site. Maybe because of the lack of moderation. Someone can insult others with all kinds of nasty words and never get banned. 
I'll stop there. 
 

The NGC forum is a relatively small group of regular posters, and a group of less common posters that tend to lead the group down unwanted rabbit holes.  The content on this forum seems to be losing value.  Most of us get nothing from reading 25 replies on a parking lot coin, and the Marketplace has become a scammers paradise of junk coins.
I know some do not want to give away their "secrets", but how do we bring some numismatic value back to these boards?  Can we start a forum to get deep on a series (challenging dates, best/worst strikes, census data, nuances, etc)?  I don't even care which series... I would just love a numismatic thread that is not about 1964 SMS Coins and/or parking lot errors.  I would love a thread where it doesn't devolve into off-topic nonsense.  These types of threads are becoming more rare the  the coins we collect.
I am open to anything that is more numismatic, and a fun topic that could serve as a nice resource to people in the future.
Does anyone here agree with the idea and the sentiment? If so, can we start a corner that is really devoted to numismatics without the junk and off-topic remarks? 

I've been a member of the NGC forum exclusively, and have never had a desire to join any others, although I do occasionally lurk on a few. Recently though, I've given serious consideration to trying to find another forum that actually had threads about topics that interest me, and not just "what is my parking lot penny worth?"  Don't get me wrong; I understand that newbies with questions need a place to go where they can get accurate information, and that somebody needs to try to take a stand and correct all of the misinformation that's out there. I am certainly willing to pitch in, and try to do my part. But, as you said, what I would consider quality posts, things that actually are thought-provoking, are sorely lacking on this form. One of the problems is that there are few active members who respond to threads, so even the interesting threads die out quickly, or get sidetracked into something that has nothing to do with the original subject. This can make members who post interesting topics conclude that it isn't really worth the effort to try.

1952 Lincoln cent, PCGS graded MS 66 RD:


 

My mistake. You make it clear that you should be ignored. 

My mistake. You make it clear that you should be ignored. 

This is the coin that started this thread, 18 years ago.
 

All good doesn’t bother me that is what a free forum is for. Can go in any direction and I am good with it.

They are both large dates and have no collector value. There is no known major doubled die variety for a 1982-D, and I see no doubling of any kind on your photos, which are out of focus.  The following infographic shows how to distinguish between 1982 and 1982-D large and small date cents, of which only the 1982-D small date copper (only two known) would be valuable circulated: