Caligae

A massive statue believed to be that of  Emperor Caligula, sitting on a throne, coming from an illegal dig south of Rome, was unveiled. The statue, broken in several large pieces, was found last January when Finance Police stopped it from being smuggled out of the country. The  "tomb raiders" tried to sell this archaeological treasure on the black market. The statue has feet wearing "caligae": this is why the person shown by the statue is identified as the emperor Caligula. 

More http://www.reuters.com/article/2011/07/13/us-italy-caligula-idUSTRE76C3VG20110713

The Emperor Caligula. Statue in the Museo Nazionale, Naples.

1911, Source G. Ferrero, The Women of the Caesars, New York, 1911.