This is a Double Betty Light from the 1700s and 1800s. Estimated Retail Value is $65.    Back in Daniel Boone days when then didn’t have any kerosene they would put some pigs fat in the holder along with a wick and this would burn and give some light.  These smelled really, really bad – but still they gave light and they were cheap.  You must remember that in the old days kerosene was not always available and many people could not afford it.  The reason you had two (double) is that if one went out you always had another ready.  Made of metal and are usually blacksmith made.  Anybody ever use one of these?   Have an interesting story from the old days - Give us a call at Holly Hill Farm Antiques 695-1146 or call the comments line at GLO-Clips.