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

Vintage IBM System/370 Reference Card - 5.25 disk & 80 Column punch card

Vintage Computer Pocket Reference Lot of 7 pamphlets IBM PANEXEC 1973 to 1984

IBM DOS VERSION 3.30 QUICK REFERENCE CARD -FANFOLD

Lot Of 2 Vintage IBM Reference Publications. 1980s

Vintage IBM System/360 S/360 Reference Data card ST533B39

Vintage 1982 IBM Personal Computer Hardware Reference Manual Rare Book IN BOX

IBM System 370 Reference Summary Card - Fourth Edition Nov 1976 (Vintage)