Vintage 1960 IBM Computer 56 Card Verifier - Card Punch Machine Reference Manual

Vintage 1980s IBM PC Technical Reference Manual

IBM PC DOS 3.1 Reference Manual 6138519

1958 Reference Manual for IBM 602 Calculating Punch

IBM System/360/370 1971 Reference Data card for Magnetic Tape Units

VINTAGE 1970'S IBM WOOD PUNCH CARD TRAY HOLDS 100 CARDS

Lot of 3 IBM Punched Card Data Processing Principles Manuals (Sections 3,4,7)

Official IBM DSF Reference Summary Manual 1992 & DIAL-IBM Reference Card 1991