1917 S reverse Liberty Walking half dollar

Description

This is a gorgeous 1917 S reverse mint mark, walking Liberty half dollar  it has been in this coin holder since 1965 or before.  It is marked with an AU/BU, in pencil,  but I have no way f knowing if that is accurate.  I am not a grader, but it may have a trace of wear .  So, I’ll guess AU, but you need to judge for yourself. It was handed down in my family a long time ago.  I can not make any claims as to whether it’s been cleaned or not.  I think I can see the pinwheel effect when I hold it in the sun…
Hate to sell it but I’d rather someone else have it who’s serious about nice coins.