To "advance" the film, the user pulled a paper tab which protruded from the side of the film pack and which was attached, facing the opposite direction, to the junction of each sheet and its intervening section of tape.
The user pulled a paper tab which protruded from the side of the film pack and which was attached. This was to "advance" the film. A paper tab was facing the opposite direction. This was to the junction of each sheet. This was to its intervening section of tape.