“Since 1924, there have been around five different lions used for the MGM logo”
– Wikipedia
Slats (1916-1928)
Jackie (1928-1956; black and white)
Coffee (1932-1935; Technicolor tests)
Tanner (1934-1956; Technicolor)
George (1956-1958)
Leo (1957-today)
The MarkoZen Blog 