[Box 3] Mailing Lists Working Disks 1-9: Yais.Exe March 90 copy, Mar-90 Digital-Carriers-Box 15 Unit ID: NLA.MS-DM005932 Date: Mar-90
[Box 3] Mailing Lists Working Disks 1-9: Yais.Exe March 90, Mar-90 Digital-Carriers-Box 15 Unit ID: NLA.MS-DM000811 Date: Mar-90
[Box 3] Mailing Lists Working Disks 1-9: YAIS Update v2.1 Digital-Carriers-Box 15 Unit ID: NLA.MS-DM005933