Oil Lamps.
Era: Seljuq/Seljuk Dynasty.
Location: Persia or Anatolia.
Date: 12th century.
Material: Bronze.
Kept in the Museum Of Turkish And Islamic Arts, Istanbul, Turkey.
Source: [1].
I found this image on flicker. It is a rare example of Seljuk era oil lamps which are kept in the Museum of Turkish and Islamic Arts in Istanbul.