ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Battery holder. Batteries in a battery holder. The apparatus is set up so that one, two, three or all of the batteries can be used in a circuit in series. The negative terminal for the wires is black. By selecting the appropriate positive (red) terminal, the number of batteries used is chosen.
Model release not required. Property release not required.