16 resultsYou searched for: Date: 1950s✖Subject: [blank]✖Type: Map✖This SiteAll Sites TableGridIndex CollectionConditionCreatorDateDescriptionIdentifierLocationMediumObject IDPagesPlaceProperty NamePublisherRightsStreetSubjectTitleType Refine Your SearchRefine Your SearchSubjectnone✖TypeMap✖PlacenoneDate1950s✖HHydrographic Office, Washington D. C.JJerome H. Knowles Jr.Nnone (14)