Four plates showing images on the surface of the glass after photographic negative has been removed. Four plates showing images after negative has been removed
three glass plates from a generator set. Used to create patterns of light on a lake with a arc lamp. From Lake district. Maufacturer unknown Three Glass Plates from a Generator Set
Stack of nine glass plates (each 3 1/4 inches square) coated with magnesium fluoride for demonstrating anti-reflection films, by Edwards High Vacuum Ltd., Crawley, Sussex, 1958. Stack of nine glass plates (each 3 1/4 inches square) coated with magnesium fluoride 1958
Glass plates showing electron diffraction photographs taken by L.E.Sutton Glass plates showing electron diffraction photographs