Dietz Monarch first generation model with two piece fount.
Smooth barn fresh patina , no heavy rusting or pitting present. 
Last patent date is 1893 
Globe - is a 1st generation Fitall with the early hotblast globe shape.
Brass burner , tin staple tied locking cone .
9/16 brass filler cap.

No visible working condition issues 

** has not been oil tested **