Accessories include A: black/white disc dia=2.7cm; B: Slide-type live box; C: brass cylinder of circular mica "coverslips" dia=1cm; D: Circular live box.
Slide-type live box mounted on the stage.
Black/white disc on the stage. The Lieberkuhn reflector is being used here for reflected light illumination.
Circular live-box mounted on the stage.