How can I tell if a bronze sculpture is real?

To tell if a bronze sculpture is real, start by scratching the dark coating on the metal called the patina. If the mark appears reddish-gold to yellow in color, you likely have an authentic bronze piece. Black or gray indicates a replica. When you strike a bronze statue, it should produce a ringing sound. A thud or knocking sound likely means the piece is another type of metal. Find a collection of expertly vetted bronze sculptures on 1stDibs.