Your display is upside down, the pins are at the lower left edge of the pc board.
Displays with the pins at the lower left typically have a non-standard pinout so you cannot use most of the drawings and photographs that you find on the web as a guide. The pin numbers, however, are numbered the same as all of the other displays.
Pins 14 and 1 are identified and you should be able to figure out the sequence between those two numbers. The unnumbered pins on your display are for the backlight and most likely the end pin is the cathode (-) as evidenced byt the fact that your backlight seems to be lit.
The bottom line is that your display is wired exactly backwards.
Don