Beginner Grading/Value question
So, I've determined that 95% of the "collection" I inherited is just worth it's value in silver. You guys have all been patient and kind in answering my beginner's questions - Thanks.
I have a couple more regarding the few coins I have that might have "some" numismatic value. I'm curious about these two coins (pictured together, just to save space). Input from a couple of you leads me to believe that they are "average." In each case, G-VG and maybe worth $80 - $200. I'm also lead to believe that they are not worth having professionally graded.
I can accept that (and I'm nopt trying to "argue" with anyone. I'm just trying to understand how those determinations are arrived at with just a few photos? When I compare them to (for example) the Isabella at this link: https://www.greysheet.com/marketplace/viewitem/1893-isabella-25c-pcgs-ms65-PCGS-65/APR4975254
it seems to me mine could be as good or better - how do we "know?"
Thanks in advance for any insights and shoot me an offer if you're interested in either.
Chuck

Comments
No way, José.
I believe you - I'm just asking you waht you see. ?
Your Isabella has noticeable wear on all of the high points (indicating it circulated) and many hairlines in the field (indicating it has been cleaned).
Based only on those pictures, I would estimate its grade at AU Details - Cleaned (although it could be XF Details, I don't have any experience grading circulated commemoratives).
If selling, you should probably expect somewhere in the $150-200 range.
chopmarkedtradedollars.com
chopmarkedtradedollars.com
Thank you. That's what I was understanding about it's value from others.
I don't grade anything unless its worth more than $400.