In A Nutshell Antiques and Interiors has dated this piece to the Victorian era.
It stands on a heavy black ceramic base. The font is made of glass and the brass collar is stamped "Hinks & Son's Patent".

It comes with a brass duplex burner stamped "Evered & Co Patent" with a 4" shade ring holder, wick turners and snuffer.
The lamp is in excellent condition for its age and displays beautifully. There are no damages on the lamp base that I can see. The burner is in good shape and the wick turners move smoothly although there is a small split in the brass on the domed top (see photo).The oil lamp is untested and I have not had it burning with paraffin in. However it appears to be in good order and I see no reason why it should not work as designed.
The best description comes from the photos so please look at them all carefully and if you have any questions just ask.
Tracked UK delivery £15.
In A Nutshell Antiques and Interiors has dated this piece to the Victorian era.
Selling good quality victorian, georgian and earlier furniture, accessories & decorative items. Ashburton, devon. LAPADA member
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In A Nutshell Antiques and Interiors is a registered member of LAPADA CINOA