Source: The following information was collated from the Supreme Court web site
The frieze, which is a sculpture installed in a wall, were sculpted by Adolph Weinman in 1932. Weinman sculpted 18 people through history who have had an impact on our concept of law, as well as allegorical figures depicting some great legal concepts.
The lawgivers: Menes (first king of the first dynasty of Egypt); Hammurabi (king of Babylon, creator of the Code of Hammurabi); Moses (shown holding the Ten Commandments); Solomon (king of Israel); Lycurgus (legislator of Sparta); Solon (lawgiver of Athens, codified and reformed Athenian law); Draco (first lawgiver of Athens); Confucius (Chinese philosopher); Octavian (first emperor of the Roman Empire); Justinian (Emperor of Byzantine, father of the Justinian Code); Mohammed (shown holding the Koran); Charlemagne (Roman emperor, founder of the Holy Roman Empire); King John (shown holding the Magna Carta); Louis IX (King of France, creator of the first appeals court); Hugo Grotius (author of the first book on international law); William Blackstone (English law professor whose work influenced English and American law); John Marshall (Chief Justice of the Supreme Court, 1801-1835); Napoleon (Emperor of France, influenced the Napoleonic Code)
The stone sculptures of 18 lawgivers, from Hammurabi to John Marshall, are meant to signify the law’s foundation in a stable society. Included is Moses with the Ten Commandments.
The artwork, which is high above the justice’s mahogany bench, was designed by sculptor Adolph A. Weinman for the building, which opened in the 1930s. Muhammad is between Charlemagne and Justinian.