Skyphos Red Figure Drinking Cup

A skyphos (plural skyphoi) is a two-handled deep wine-cup.
The handles may be horizontal ear-shaped thumbholds that project from the rim. 

This cup shows young men training in music and athletics with their instructors.
The lyre held by one youth is a practice instrument (smaller and simpler than the kithara,
 which gives us the name guitar).
The instructor offers a strigil, a scraper used by athletes to clean their bodies (of preparatory oil and accumulated dirt) after physical exercise;
perhaps encouraging him to begin athletic training.