The image shows a Siemens SIMATIC K-TP 178 MICRO Touch Panel, specifically model number 6AV6640-0DA11-0AX0.
This touch panel is a component used with the SIMATIC S7-200 series of Programmable Logic Controllers (PLCs).
It features a 5.7-inch blue mode STN display.
The panel also includes six additional function keys that are configurable.
It is designed to work with WinCC flexible 2004 SP1 Standard software.