Indeed quite nice. I do wish PMG...and others if similar...would limit the holders and tabs (labels at the top) more to the length of the bills/notes. Understand there are different sizes of notes, but to me for the more regular "modern" size they're too long and would better facilitate/allow for storage and presentation/show if not quite so long. Minor detail in the scope of things, today, to be sure.
@SteveInTampa thanks. So that means the bills themselves cost about $20-25. That's about right for the 1957A and a bargain for the 1957B.
Very nice, however 1957 A and B,s are very common especially in average grade I have over 20 stars from the same series and in perfect condition but are only worth about $30 - $40