Mytton Antiques - Jerrard Nares has dated this piece to the 1850s.
The hanging loop above a ringed, waisted, and inverted cup stem.

The lower body with an orb, finished to the underside with a ringed and waisted finial,
complete with a lower hanging ring.
The branches each numbered, fitting to the corresponding position on the boss, and held with ball finial pegs.
Height 17 inches
Width 19 1/4 inches
Depth 19 1/4 inches
Circa 1840
Please note, virtually a pair to the other brass light on the website.
Mytton Antiques - Jerrard Nares has dated this piece to the 1850s.
Fine antiques from the 18th century onwards, supplying both trade and private customers worldwide.
You can view the stock and full dealer information on the Mytton Antiques - Jerrard Nares Profile Page