This is 2 lines by 16 characters LCD display, HD44780-compatible controller, with a yellow/green backlight. Notes: the documentation link is to a slightly different type, but the connections are the same. The backlight does not have separate pins, it connects to the ground and 5Volt pins, the series resistor is in the LCD.
This is a surplus product. It was obtained from a surplus store, from an inventory or from any other secondary source. You can expect this product to be in good working condition, but it can show signs of being handled, shipped, repackaged etc. The supply of a surplus article can suddenly run out, or the price can change. Get it while it is available.