FS: HP 28S with manuals

[w2iy]

GD everyone, I am offering for sale my 28S with fresh batteries and both manuals (Owner's Manual and Reference Manual). As far as I can tell everything works but I am not knowledgeable enough to be able to test all its functions. The only flaw I can detect is that the battery cover is somewhat wonky (a fairly common issue) though it does stay closed and holds the batteries in place OK. The display is clear although my picture is not the best I am asking $75 for the bundle plus shipping from zip 87508. Thanks for reading!