Slide projector, for 4x3 3/4-inch glass slide. Model BC Balopticon. Black japenned tinplate, Lens focus 41/2 inch, focus knob on side of lens mount, lens diameter 7 cm. Leather bellows. Removable lid. Glass light bulb inside body. Power cord, with on/off switch, from underside of body. Air holes on body and lid. Wood slide carrier mounted behind bellows. Series No. 66385.