Hnry You are beginning to see the point of the adage:
Quote:
Buy the coin NOT the slab.
Slabs and their super inflated prices and grades are for investors not coin collectors.
Regarding what you said:
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... fool top notch professionals with an entire battery of tests, equipment and knowledge at their disposal, what chance do we have?
You have much more chance to get it right than you think.
The "experts" at the TPGs are the finalizers ONLY. The rest are primarily graders with little expertise as authenticators. Regarding the "battery of tests" that consists of a 10-30 second look through a 30x binocular microscope. Except in rare cases it is normal for only 2 or 3 people to even see the coin submitted.
TPGs do not weigh coins.
TPGs do not do specific gravity.
TPGs do not normally look at the edges of coins.
TPGs do not test coins with magnets.
XRF, if it is used at all, is an added fee item.
Specialized experts are also an added fee item.
Use of reference books is possible but unlikely.
The TPGs do accept a very wide range of coins.
The TPGs focus their efforts on
US coins.
So if you do your own grading and authenticators you can:
Focus on a limited number of coin types.
Create a focused library - read and learn about YOUR type.
You can weigh every coin.
You can look at your coin with your binocular scope.
You can spend time studying and learning all about your coin.
You can test your coin with a magnet.
You can ring and feel your coin.
These are all things you don't get with slabbed coins.
Do not be afraid of the process. None of this is more complex than high school level science.