Up for sale is a beautifully complete, highly collectible piece of computing history: the official July 1985 IBM Hardware Reference Library: Guide to Operations for the IBM 3270 Personal Computer AT. This premium manual was issued for IBM’s high-end, corporate mainframe-hybrid workstation systems and is incredibly tough to find as a complete set today.

• Official IBM Part Number: 6168570
• The Complete 4-Disk Software Suite (5.25" Floppy Disks):
  1. Diagnostics
  2. Control Program 1
  3. Control Program 2
  4. Online Tutorial
• The Documentation Layout: Housed inside its original textured 3-ring binder and complete with its original matching hardshell slipcase enclosure. Also includes all 3 original fold-out reference pamphlets!

Condition Details (Vintage Condition / Complete Set):
Please review the photos carefully to evaluate the condition before purchasing.

• The Manual & Binder: The interior text pages are crisp, clean, and white. The 3-ring binding mechanism is tight and snappy.
• The Outer Slipcase: Sits structurally sturdy and rigid with clean edges. Displays only minor standard vintage shelf-rubbing or light surface scuffs consistent with storage age.
• The 5.25" Floppy Disks: All 4 disks are in protective jackets. Please Note: Disks are sold strictly untried/untested on live vintage hardware due to the age of the magnetic media.