| Object Number | 29-128-621 |
| Current Location | Collections Storage |
| Culture | Italian |
| Provenience | Italy (uncertain) |
| Period | Renaissance |
| Date Made | 1400-1699 |
| Section | Mediterranean |
| Materials | Chalcedony | Onyx |
| Technique | Cameo |
| Iconography | Medici Family | Portrait |
| Description | Sommerville: Chalcedony-Onyx. Portrait of one of the Medici. Maculated Pebbles, Etc, Case KK. Vermeule: Chalcedony. 16th. |
| Credit Line | Bequest of Maxwell Sommerville, 1904 |
| Other Number | 621 - Sommerville Gem Number |
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