The data block below the photo has all the information on the camera and exposure.
It was a 16 second exposure with the aperture set at f:8 on ISO 100 film with a 83mm lens. Also it looks like a "star" filter was used, this is a piece of glass that screws on ove the end of the lens, it has very fine lines etched in the glass and this is what give the lights the star apprearance
regards