This late 19th century double projector was designed to show glass magic lantern slides in a continuous slide show with fading technique. The original light source was by means of an oxy-acetelene flame directed on a lime block and this projector is unusual in that it hasn’t been converted to a electric light source. It is possibly one of the original projectors used by staff at the Albert Memorial Institute (a precursor to RAMM) to give lectures with.