| Title | Lamp, Sinumbra |
| Artist/Maker | Thomas Messenger & Sons (attributed) |
| Date | 1835 ca. |
| Medium | Brass, copper, glass |
| Dimensions | h. 39.5 x w. 12.5 x d. 12.5 in. (h. 100.33 x w. 31.75 x d. 31.75 cm) |
| Credit Line | U.S. Senate Collection |
| Accession Number | 52.00018.001 |
