@david-Saliba Looks like a SSD1306 IIC OLED display 128x64. You can get them for a couple of dollars/pounds from ebay and they're easy to interface with.
Here's my notes on how I got it working with the Pi : http://kapie.com/2016/ssd1306-128x64-bit-oled-display-interfacing-with-raspberry-pi/
.. Ken