Numerous apprentice pieces, both hands and feet, have been found at Aphrodisias. These appear to have been exercises that trainee carvers performed during their apprenticeships. More
Voorhis, J. A. van (1998). ‘Apprentices’ pieces and the training of sculptors at Aphrodisias’, Journal of Roman Archaeology 11: 175–92.
Voorhis, J. A. van (2008). ‘The training of marble sculptors at Aphrodisias’, in R. R. R. Smith and J. L. Lenaghan (eds). Aphrodisias’tan Roma Portretleri=Roman Portraits from Aphrodisias. Istanbul: 120–35.