Leonard Bergman with piece of observing cage in hand preparing TMOT for erection.

Leonard Bergman preparing TMOT for erection.

Leonard Bergman preparing TMOT for erection.

Top of the inner and outer towers of a TMOT.

Swedish pole being erected next to survey mark.

TMOT erected.

Bilby tower destroyed by strong wind storm.

Bilby tower destroyed by strong wind storm.

Anchor plates formerly four feet underground pulled out and up in air after wind storm.

Field foreman U. Jones on damaged Bilby tower.

Steel spaghetti after Bilby tower blown over in wind storm.

Field foreman U. Jones on damaged Bilby tower.

Bilby tower destroyed by strong wind storm.

Bilby tower destroyed by strong wind storm.

Observer's platform and triangle boards formerly above platform, now askew after windstorm.

Bilby tower destroyed by strong wind storm.

Magnetic station PEAKED MT 2 1896. Note the triangle cut in the rock surrounding the disk which indicated the location of the original station. Note the six-sided star which denotes a magnetic station.

Computer Dean Wegner working up triangulation observations on a Texas Instruments terminal. Party G-19.

Computer Dean Wegner working up triangulation observations on a Texas Instruments terminal. Party G-19.

Party G-19 office trailers and headquarters.

Party G-19 office trailers, trucks, and headquarters.

Party G-19 party chief with personal trailer on the move from Missouri to Connecticut. Party chief's wife driving blue van following trailer.

Remote control arm for mounting atop Swedish pole. Arm rotated and extended horizontally to position survey equipment directly over mark on ground. Silver colored light rotated horizontally or vertically so light could be pointed directly at remote observer.

Leonard Bergman preparing TMOT for erection.

Chief of party's van and Spartan trailer in Stafford Springs, Connecticut.

Description not available.

Dehavilland Buffalo N13689 on the tarmac.

Rockwell Turbo Commander on the tarmac.

Rockwell Turbo Commander on the tarmac.

Photogrammetric camera Wild RC-8 and other associated equipment ready for installation on Turbocommander at Dulles International Airport.

Wild RC-10 photogrammetric camera installed on Rockwell Turbo Commander.

Lieutenant F. D. Moran and Lieutenant Commander Robert Franklin planning a mission on the Rockwell Turbo Commander.

Lieutenant F. D. Moran, LCDR Frederick H. Grammling, Lieutenant Robert C. Westphall, and Lieutenant Robert Franklin at Dulles International Airport. Preparing for photogrammetric mission.

NOAA de Havilland Buffalo N13689 taxiing in Virgin Islands.

Description not available.

NOAA de Havilland Buffalo N13689 parked on tarmac.

NOAA de Havilland Buffalo N13689 parked on tarmac.

NOAA de Havilland Buffalo N13689 parked on tarmac. Photographer Bob Clark kneeling in center, pilot LCDR Bradford B. Myers on right standing.

NOAA de Havilland Buffalo N13689 flying, starboard quarter view.

Performing maintenance on NOAA de Havilland Buffalo N13689.

Disney Coast and Geodetic Survey Eagle as nose art on the NOAA de Havilland Buffalo N13689.

Disney Coast and Geodetic Survey Eagle as nose art on the NOAA de Havilland Buffalo N13689.

Description not available.

Bob Clark, aerial photographer, reading a National Geographic, prior to photographing coastal geography.

Bob Clark, aerial photographer, after drawing inspiration fromNational Geographic, ready to photograph coastal geography.

Aerial photographer in unpressurized cabin of NOAA de Havilland Buffalo breathing with assistance of oxygen mask, operating Wild RC-8 camera.

Aerial photographer, Charles Ferguson, operating Wild RC-10 camera installed on NOAA De Havilland Buffalo N13689.

Aerial photographer, John Rector, operating Wild RC-10 camera installed on NOAA De Havilland Buffalo N13689.

William G. Riggs operating infra-red scan system on ESSA 88 de Havilland Buffalo aircraft.

Description not available.