IBM PS/1 Computer System.
Includes monitor, keyboard mouse, base unit and mains lead as pictured below. It is a bit grubby but can be cleaned up easily enough. The mouse needs some mechanical attention. It basically works but has a replacement ball holder underneath which is stopping the ball moving properly for some reason.
It has a DOS operating system yet with a graphical front end.
All the software is on the internal hard disk.
There is a small crack on the front of the monitor (top left) but its not very noticable and doesn't affect the operation. Could probably be superglued quite tidily.
Picture is of actual item.