Armspear mfg made watchman mill lantern made for F.O. Dewey from Boston , Mass
Features a lockable lid to prevent access to flame. 
Beautiful cast Macbeth barell globe 
Brass long stem marked Armspear burner 

Condition  - lantern is near mint , smooth clean Unrestored tin , lots of tinning remaining. 
No heavy rust or pitting present. 

No visible condition issues 

** has not been oil tested **