White light bleached phase reflection hologram of a metal specimen in a tank of water. Made by Dr Watson's research group in 1986 White light bleached phase reflection hologram of a metal specimen in a tank of water
Photograph of early Magic Lanterns. Platinotype copy of plate at p.732 of Zahn's "Oculus Artificialis", 2nd edn. 1702 Photograph of early Magic Lanterns