You are looking at a preowned Doble M5400 Sweep Frequency Response Analyzer. This auction does come complete with the power cord, shown.
This machine is preowned. It is in very good condition overall, with only minor cosmetic wear. Most of that wear is on the outside of the case. Both exterior locks function exactly as they should to keep the case securely closed. The power cord shown in my photos is included. Machine powers up and turns on with no problems or issues.