I hope it's a coin that your father-in-law had in his collection and not one he bought recently, thinking it was the AH variety.
The die markers are missing. All of the Accented Hair proofs have a missing left bottom serif on the I in LIBERTY. You can see the left bottom left serif is full on the images you posted. This is always a quick verification tool of the Accented Hair variety.
The other die markers listed are the solid rays behind the eagle's head and the flared G serif on the FG initials.
ANA ID: 3203813 - CONECA ID: N-5637 Clean a coin that may be worth collecting? Please DON'T! When in doubt, leave it dirty!!
