Any interest here before I post them to EPay? Available for shipping cost from 95549: IBM RT PC AIX OS Communications Guide 59X7668 IBM RT PC AIX OS Messages Reference 59X9115 IBM RT PC INED 59X7643 These are the classic early slipcase style manuals.  They are in pristine condition.   All three are 1985 "First Editions" of the pub. I received them in an auction lot of of documents and have no need. Combined weight is ~13lbs. Steve