c.1868 Atterbury oil lamp with milk glass octagonal base.
The lamp stands 13" tall.  Width of base is 5-1/2."
All the parts appear to be original, or extremely old.
Fairly heavy lamp weighs about 3-1/2 pounds.
Vg condition - a little chipping on bottom of base which I am told is common with this style.
I also see a small ding on top of octagonal base.
This lamp was removed from an old antique store that closed in Western PA in the late 1980s.
The original store tag reads "1868" with other notes.  I am told the owner used to use the old "Thuro" books to help identify.