Microsoft MS-DOS 5 Upgrade Operating System 
3.5" floppy VINTAGE 1991 + MICROREF in boxes

Microsoft MS-DOS 5 Upgrade Operating System 3.5" floppy VINTAGE 1991 
+ MICROREF Quick Reference Guide & Keyboard Template Set
Open boxes. Clean manuals and papers. 3 floppies for DOS.

$6.00 Shipping in USA.  Global Shipping Program also available for items.