This is a negative transmissive 16x2 character LCD with blue fonts on a black background.
This unit has a 16 pin parallel port with 8-bits of data used to interface with any microcontroller you may have at hand. You also need a 10k potentiometer to adjust the contrast. This display can show up to 16 columns and 2 rows of text. The fonts on this display module are blue and the background is black.
Resources:
Example code for Arduino Uno (see attachment)
Wiring guide for Arduino Uno