Filters: Tags: Topography E (X) > Date Range: {"choice":"year"} (X)

Filters Date Types (for Date Range) Contacts U.S. Geological Survey Patterson, E.F. Categories Image (3) Tag Types collection (3) category (3) label (3) View Results as: JSON ATOM CSV

Long multiplex bar with Zeiss wide angle projectors. Location unknown. 1952. Album caption: Long multiplex bar with Zeiss wide angle projectors. For use in stereo-triangulation. Photograph taken by E.F. Patterson, August 1952. Negatives on file in Central Region. No index card. Categories: Image; Tags: Patterson, E.F. Collection, Photographers, Topography E, photo print Complete multiplex unit showing portion of compiled map. Location unknown. 1952. Album caption: Complete multiplex mapping unit showing portion of compiled map. Photograph taken by E.F. Patterson, August 1952. Negatives on file in Central Region. No index card. Categories: Image; Tags: Patterson, E.F. Collection, Photographers, Topography E, photo print H&H multiplex supporting frame with equipment. Location unknown. 1952. Album caption: H&H multiplex supporting frame with equipment. Photograph taken by E.F. Patterson, August 1952. Negatives on file in Central Region. No index card. Categories: Image; Tags: Patterson, E.F. Collection, Photographers, Topography E, photo print