Years ago, I sent a 1916d Mercury Dime to ANACS to be graded. It came back MS60.
I ended up selling it to a high end coin dealer in NYC.
He had some doubts about the Grade.
I would eventually find out that, had the coin been graded by
PCGS,, the grade would have been Gospel.
If you have a coin you think is worth grading, I would suggest you talk to a reputable coin dealer and have it sent to PCGS.
I recommend CSGS, and find out what your coins are worth, because the grading may be more then the coins are worth. Then, sell your treasures through a coin auction. Good hunting and good luck.