Roberts Radio Current Meter ready for deployment in Akutan Pass.

Streamlined buoy with Roberts Radio Current Meter. Ready for deployment in Akutan Pass

Streamlined buoy with Roberts Radio Current Meter. Deployed in Unalga Pass

Full-crew effort to recover current meter buoy. Even the cook was involved. Off of WAINRIGHT. Photo #2 of sequence

Full-crew effort to launch current meter buoy. Off of WAINRIGHT. Photo #1 of sequence

Recovery of current buoy from approach to nearly on deck. Off of WAINRIGHT. Photo #3 of sequence

Current meter buoy being deployed from the EXPLORER

Current meter buoy being lowered to the rail. Off of PATHFINDER

Installing current meter at Cape Seniavin. Off of PATHFINDER

Current meter at Cape Seniavin installed by PATHFINDER.

Emerson E. Jones checking the wire angle with a 3-arm protractor. Over-the-side operations on the MARMER

Buoy in tow from the MARMER. Towing buoy to station location

Current buoy in strong currents in Charleston Harbor. Station established by the MARMER

C. William Hayes' first command. Just kidding - checking batteries and electronics package

Deploying a current meter from the MARMER. Working off the MARMER

Gabby - the talking current buoy. Gabby getting a new face for a Norfolk, Virginia, open house. MARMER hosted open house for general public. Article appeared in Norfolk Ledger-Star on November 13, 1963

Current buoys on deck on the FERREL for Maine project.

Current buoy and meter being deployed in Penobscot Bay. Deployment off of FERREL

Current buoy in water in Penobscot Bay. Deployment off of FERREL

NOAA Launch 1255 with crane for handling current buoys and meters. Launch 1255 worked with FERREL in Penobscot Bay

Current meter with trash catcher to keep impeller from being fouled. Deployed off of FERREL

Bottom mounted current meter being deployed from FERREL. Project to determine path of brine plume from salt dome solution and pumping. Studies during formation of Strategic Petroleum Reserve

Colonel E. Lester Jones and Honorable J. D. Craig. On EXPLORER on International Boundary Commission inspection tour. Colonel Jones was a founder of the American Legion

Picking up pilot and radio operator from recon airplane off Oahu. Plane ran out of fuel and landed on water searching for Japanese fleet. Picked up by EXPLORER 3 days after Pearl Harbor

Route of 17th Field Artillery Observation Battalion through Belgium and Germany. 17th FAOB was on the north shoulder of the Bulge. Photo from 17th FAOB Album

Route of 17th Field Artillery Observation Battalion through England and France. 17th FAOB landed one day after D-Day. Engaged at Falaise Gap in France, marched through Paris

Training maneuvers on the Dartmoors prior to D-Day. Personnel of the 17th FAOB. Photo from 17th FAOB Album

Meteorological observations on the Dartmoors. 17th FAOB training exercises prior to D-Day. Photo from 17th FAOB Album

Transit party training on the Dartmoors. 17th FAOB training exercises prior to D-Day. Photo from 17th FAOB Album

Lieutenant Fountain and Sergeant Newton on reconnaissance training. 17th FAOB training exercises prior to D-Day. Photo from 17th FAOB Album

Survey party entering Vire, France, shortly after D-Day. 17th FAOB. Photo from 17th FAOB Album

Flash ranging command post overlooking the Rhine River. 17th FAOB. Photo from 17th FAOB Album

Flash ranging command post overlooking the Rhine River. 17th FAOB. Photo from 17th FAOB Album

Survey work at Kesternich. 17th FAOB. Photo from 17th FAOB Album

Members of 17th FAOB at Ehrenbreitstein Fortress. L to R - Deily, Bacon, Richey, Harding, Riback, Snyder, Stewart. Photo from 17th FAOB Album

Frontispiece from the History of the 17th Field Artillery Observation Battalion. Image from 17th FAOB Album

All in a days work for the members of the 17th FAOB. Shooting, running line, stopping for chow, rodman, and observer with transit. Image from 17th FAOB Album

Running the transit - survey work with the 17th FAOB. Image from 17th FAOB Album

Route of the 8th FAOB. Image from the 8th FAOB Album

Diagram of sound ranging coverage with artillery firing possibilities. Image from the 8th FAOB Album

Sound ranging operations of 8th FAOB. 70 sound bases established in less than one year. Image from the 8th FAOB Album

Flash observer at work. 25 flash bases established. Image from the 8th FAOB Album.

Over 4,000 miles of wire laid to communicate with sound and flash ranging bases. Image from the 8th FAOB Album

Flash ranging operations. Image from the 8th FAOB Album

Composite of all operations associated with 8th FAOB. Image from the 8th FAOB Album

The bottom line - determined 7,016 enemy targets for Allied artillery. Image from the 8th FAOB Album

Captured German map showing geodetic control around St. Nazaire, France.

Title page of captured German geodetic control book for St. Nazaire.

Listing of geodetic control points with rectangular coordinates. From captured German geodetic control book for St. Nazaire

Listing of geodetic control points with rectangular coordinates. From captured German geodetic control book for St. Nazaire