Designed by prominent Oklahoma architect Solomon Layton and partners George Forsyth and Jewel Hicks of the firm Layton & Forsyth this building was built in 1937 and replaced the original courthouse. The original cost was $1.5 million which was paid with a bond issue and monies from PWA. The bond issue was also a part of the City Hall, Municipal Auditorium and City Jailhouse.
The south-facing main entrance has Cold Spring Minnesota granite steps and wing walls, with cast aluminum and etched glass lights atop each wing wall. The building is three stories to the east and west, and then soars in an additional ten story tower…Above these panels is an etched quotation from Abraham Lincoln, and above that, a bas-relief mural depicting a panorama of the State’s history.
The interior of the building on all levels is filled with decorative images of Oklahoma…Marble and plaster symbols in various parts of the building show Oklahoma’s agricultural background, with corn and wheat. Its ranching history is depicted by a bull and bison. In the courtrooms are bas-relief images of early justice, with scenes of tribal justice and frontier lawmen.On the south facade, there are engravings with quotations from George Washington and Samuel Adams.” 
The Oklahoma County Courthouse, built in 1936-37, is a thirteen-story building constructed of Indiana limestone. 1 The stepped-back massing, base relief murals, and abstract floral/corn ornamentation executed in aluminum exemplify the Art Deco style. Sited alone on a landscaped block of downtown Oklahoma City’s Civic Center, the courthouse is surrounded by modern high-rise and historic buildings, including the Municipal Building/City Hall, the Municipal Auditorium, the Center Theatre, and the Harbour Longmire Building (NR, 1980). The Oklahoma County Courthouse possesses an unusually high degree of architectural integrity.
- Wikipedia – https://en.wikipedia.org/wiki/Oklahoma_County_Courthouse
- The Living New Deal – https://livingnewdeal.org/projects/oklahoma-county-courthouse-oklahoma-city-ok/
- National Register of Historic Places NPS Form 10-900-a – https://npgallery.nps.gov/GetAsset/a75e6ab4-e145-40ff-bc04-24e27d1a2fd0