Adam's and Westlake Mfg. Co. of Chicago, Illinois
No.39 Fire Department model.
Patent dates on fount bottom read : 
April 26th 1864 
No.1 ratchet burner and a threaded removable fount and cup.
Features a heater tube that arches over the flame and down into the fount, for use in cold weather climate to keep oil from sludging or freezing up.

Standard unmarked No.39 globe 
Apparatus  bail hook ontop.

Condition - excellent, almost as nice asit comes for an untouched barn fresh nickeled over brass lantern.
Almostall of its nickeling intact with light pickling .
No visible condition issues present.
Shelf display ready! 

** has  not been oil  tested **
** item is  on consignment,  ships from PA**