Informix-4GL Database 1989, Version 1.10 - IBM PC, AT - DOS 3.1 - Mint.

Informix-4GL -  1989, Version 1.10.06C for IBM PC, AT and compatibles, DOS 3.1 - 3.3.

5.25" diskette set of 12 included,  in separate box with more documentation for Registration, Getting Started, etc.. - unused, never installed. 

Manuals still shrinkwrapped.