Subject matches "Atlantis II, R/V (WHOI, 1963-1996)" or its children

Instrument over the side during Thresher search.

Sydney Knott with echo sounding recordings during Thresher search.

Sydney Knott working with PGR during Thresher search.

Sydney Knott (back) and Frank Andrews during Thresher search.

Student Pete Leonard, in lab during Thresher search.

Willard Dow, Frank Andrews, Stephen Stillman with PGR during Thresher search.

Lincoln Baxter working with PGR during Thresher search.

Recovery of camera system during Thresher search.

Atlantis II construction

Recovery of camera system during Thresher search.

Looking over charts aboard Atlantis II during Thresher search.

Working with charts during Thresher search.

William E. Schevill (left) working on board during Thresher search.

Sydney Knott and Frederick Hess on Atlantis II during Thresher search.

Group working with equipment during Thresher search.

Unidentified man working with equipment during Thresher search.

Working in the chart room during Thresher search.

Frederick Hess (plaid shirt) and others examine dredge contents during Thresher search.

Working on pieces of Atlantis II during construction

Deploying camera system during Thresher search.