Archer &  Pancoast mfg.
This is the smaller Convex model , featuring a rectangle fount and triangular shaped frame. 

Brass push in lock no.1 convex burner is marked Archer & Pancoast on one side and Patented March 1st 1864 on the reverse. 
Stars on the thumbwheel. 

Condition  - excellent for its age and delicacy of this lantern type.
Clean tin , no  heavy rusting or pitting present. 
Glass panels are in good condition with no cracks .
No visible condition issues present. 

** has not been oil tested **

** will be shipped with glass panels removed and packed separately **