ldhair

Tilting and rotating the coin under a good light should do the job IF you know what you’re looking for. For example, many people mistakenly think that a cleaned coin will necessarily exhibit obvious hairlines. But based on the type of cleaning, that might not be the case.
Here are a couple of things to try...
Experiment with starting out by rotating the coin, so that you’re viewing it from the side or bottom, instead of the top, first. That can give you a different perspective and you might see things differently.
If you’re not already doing so, when you first examine a coin, view it without magnification. Get a feel for the overall look/big picture, both up close and at a distance. After you have done that, use your loupe.
If you get an opportunity, sit down with a sharp grader and review some cleaned coins together. 
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" Not rare and more of a conversation piece."
No, it is not worth "money" graded, raw, plain or peanut, crunchy or smooth, hot or cold...." Not rare and more of a conversation piece." Enjoy it for it's interest as a coin made from a die where part of the final '9' was filled with grease and metal dust....'cause that's what it is.
:)

I'll try to post my 1803 Dime again.
 
 

I think I wouldn't be boasting about lying to a person to cheat them out of a coin, even if it were only worth a couple of dollars. 

Harshly cleaned is correct. Someone used something to scrub the heck out of the coin. There is no way to know what they used. That's impossible. Note the many straight scratch lines on the coin and the lack of any luster. Sure sign the coin was harshly cleaned. 
The coin is also covered with heavy hits. Not what I would call bag marks. The hits came from poor handling and again it's impossible to know what hit the coin. 
If you like the coin, enjoy it.    

AI grading is an interesting exercise, because it shows just how much you need to understand something to build an AI system that can do it well.  This is a good example of a classifier problem, where the classifications are the grades of a coin.  A standard approach to this is to throw a lot of image data together with ground truth grades (I know what you're thinking) and let the system learn how to classify unknown images.  This will work pretty well with wholesome, circulated coins with flat appearances that can be graded pretty much as line drawings and imaged on a flatbed scanner with repeatable results.
Uncirculated coins pose a different challenge.  If you look at how people grade them, there is a lot of tipping and twirling of a coin in the light to get a full picture of what it looks like.  If you translate that process to a computer, that is an incredible amount of data that needs to be acquired, and acquired without loss due to an insufficient imaging setup.  We've all seen countless GTG threads everywhere that have unexpected grades associated with a coin.  We are grading these with one image.  Sometimes they're good images, sometimes not, but it's always that case that a single image isn't capturing everything about a coin. More nefariously, it's sometimes the case that a single image is hiding specific things about a coin, such as a patch of hairlines, a bad hit, or a scratch.  If I'm trying to rip of eBay buyers and I normally use bad (for example, overexposed) pictures of problem coins to do this, knowing there's an AI grader in play, I might decide to try and game that with my photos.
To me, what would be the most impressive is a data acquisition system that could acquire the data necessary to train such a system well and then to actually perform the grading on test coins.  From there, the next step would be to see how to optimize the whole process.
Simpler AI tasks related to coins include identification, coarse grained attribution (think Overton varieties, not VAMs), and maybe even AT/NT assessment.
 

And all these years I've been foolishly rotating coins in the light when I grade them. All I needed was a flat picture to grade them. 

If you’re paying more than $50 for grading of lower value coins, you’re doing something wrong -  using the wrong grading tier, submitting through the wrong dealer, submitting on your own, but not being efficient or other.

Graded coins might be offered at less than it cost to have them graded for reasons such as: The submitter thought the coin would grade higher and sell at a higher price. The submitter had a quantity of coins graded (possibly through bulk grading) and some of them were scores, while others were losers. But the submitter was content to sell all of them, hopefully having made money on the group.
 

Your trade dollar has been harshly cleaned. Really noticeable on the second picture. I would return it if you are able to.  

PCGS gave it a 62. Bowers had it as AU in the auction. I'm good with either grade.
Tough coin to set a value on. Not many come up for sale in this grade range.  
The Bowers auctions in those days were good to me. Bought a lot of scarce date Seated dimes at fair prices.