These Peepshow images are transparent views able to conjure-up 'day and night effects' due to pierced and cut-out parts in the engravings, backed with colored tissue paper. Blow these images up for better effect - divine!
Anatomical Eye Table on view at the Palazzo Poggi:
Jo Meesters' Light Box side table:
Andromeda Murano's lit mirror:
David Knott's light cube: