1867 , 1868 patent dates on the center tube
This is possibly an Early unmarked Dietz No.17 model
Uses a big No.1 globe ( which is very strongly cast)
Brass No.2 burner and cone ( new wick installed)
7in Mercury reflector slides in and top wire latch holds it in place .
Brass fill spout is unique , this style is commonly found on oil lamps and street lamps of the era.

Condition  - excellent, next to perfect condition you want to find for almost a 150yrs old.
No rusting or pitting, no visible condition issues present.
Nice tinning still visible on back and bottom.
Lantern has been lightly cleaned,  and oiled for a finish.
Shelf display ready.
** has  not been oil tested **