Miscellaneous photographs An assortment of photographs of data and models, several unidentified or not labelled but including: 3 graphs and diagrams on intensity a distribution Two images of the Great spiral in Andromeda, photographed wit the 24 inch Schmidt-Type Telescope, Warner and Swasey Observatory Image (colour) of an array model Unidentified image (monochrome) possible of fibres in suspension c.1970s