I'm having a hard time judging if this is an Apple II joystick. It looks like a 9 pin connector. After doing some research I discovered that the Atari Joyport is also 9 pins, but it's female. This one is male. The PC joystick connector is 15 pins. My guess is that this is for Apple II.
Sorry, no better pictures, and the person selling it has absolutely no clue about computers.