Photograph of typists at Port of London Authority (PLA) Head Office, Trinity Square 1 large laminated black and white photographic print of typists at the Port of London Authority Head Office, at Trinity Square. Text on the reverse of the print provides some contextual information about the typists who worked in the book-keeping machine room at Trinity Square and estimates the date of the photograph as approximately 1930. Includes quotations from Miss Elizabeth Garrett, a supervisor of the women staff at PLA Head Office during this period. The source of the photograph and text are listed as 'Museum in Docklands Collection'. c.1930