20 resultsYou searched for: Date: 1950s✖Subject: [blank]✖This SiteAll Sites TableGridIndex CollectionConditionCreatorDateDescriptionIdentifierLocationMediumObject IDPagesPlaceProperty NamePublisherRightsStreetSubjectTitleType Refine Your SearchRefine Your SearchSubjectnone✖TypeDocument (1)Map (16)Publication (3)PlacenoneDate1950s✖HHydrographic Office, Washington D. C.JJerome H. Knowles Jr.LLawrie HolmesNnone (17)