'Photographic Surveying Apparatus' notes
- Bridges-Lee, John
An undated summary of Bridges-Lees' photographic surveying apparatus and the improvements provided in apparatus for taking photographs in three patents dated 1894 and 1896. A list of events where the phototheodolite was exhibited, journal references with published accounts of the instrument, manufacturers, selling price and likely purchasers. manuscript signed by Bridges-Lee.