MS-62.
A FB or FSB means "Full bands" or "Full Split Bands." See, there's supposed to be a line separating the central band in two, which gives it the "Full split bands/ Full bands" designation. If there isn't a line separating the central bands of the fasces (the cylinder-thing on the reverse), then it is not a FB Merc. Since the bands are not separated on this one, it's not a FB.
Some dates, such as 1945, are very pricey in FB because the majority of them weren't well-struck.