NCR Drivers and Patches
http://www.ncr.com/support/support_drivers_patches.asp?Class=pc_library_os2

MS OS/2 1.21 Maintenance Disks - NCR
Date: 1994-03-28

15-488.IMG  MS OS/2 1.21 Maintenance Install Disk for high speed processors

15-490.IMG  MS OS/2 1.21 Maintenance Supplemental Disk for high speed processors

15-493.IMG  MS OS/2 1.21 Maintenance Disk 1 for high speed processors 

To generate the disk images use copydisk.exe