I have never used it. Just been the care taker for the last 50+ years.

All totally manual. Compose and focus on a frosted glass screen with an inverted image working under a black cloth. Then place the film case in the camera, pull the slide to allow the film plate to be exposed. I have read somewhere that they would remove the lens cover and time the exposure then replace the cover.

The shutter box seemed to use a bulb release. There is a timer, device to go in the tube. The tube is long gone and the bulb is a hard ball.