I would say the hairlines you are seeing are results of an old dip-job. IMO, whoever did did a good job, and this is acceptable. Another detail that points in that direction is the slightly doubled profile, which if I'm not mistaken, is trademark of a dipped coin...?
I can't see this being an O-105. On the 105 the I is centered under T. I am leaning towards the O-122, but not 100% positive. Nice coin no matter what.
Thanks for the help. I am learning with my overton. The O 105 was the only one I could find that matched the 5 in 50 c. My backup was O 122 but I thought the milling was different. But the three is tilted and interestingly enough both the book example and mine have the weak strike some might say wear on Pluribus.
Mark is correct. It is without a doubt a O-122. You can attrib this coin by star 7 alone. Look how the top point of star 7 points right in between the milling and the opposite point, splits the head band. O-122 is the only variety like that. After that you can confirm with other diags and you will see they all match up. For the grade, I would need to go with AU-55. While it is difficult sometimes to tell the difference on a CBH between wear and weak strikes, the left wing, drapery, breast, clasp, top of the tuban seem to show actual wear. In hand you can look for luster breaks in these areas. As far as the cleaning issue, yes it has been cleaned. It is a 180 year old silver coin that is showing signs of wear. It should be darker, that is just the way Chemistry works. Mike