| Object Number | 29-128-235 |
| Current Location | Collections Storage |
| Provenience | Mediterranean |
| Section | Mediterranean |
| Materials | Agate | Onyx |
| Technique | Cameo |
| Iconography | Bellerophon | Pegasus |
| Description | Sommerville: Agate-onyx. Bellerophon catching the winged horse Pegasus drinking at the well of Peirene. Pegasus, son of Medusa by Poseidon. Greek and Roman Cameos, Case N. |
| Length | 3.5 cm |
| Width | 2.5 cm |
| Credit Line | Bequest of Maxwell Sommerville, 1904 |
| Other Number | 235 - Sommerville Number |
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