Railroad Signal  Lamp and  lantern  Company, made for F.O. Dewey & Sons out of Boston , Massachusetts.
Stamped on the bottom :
Patented AUG. 31, 75
F.O. DEWEY & SONS BOSTON

Brass chimney Tag reads: 
F.O. DEWEY CO.
MAKERS, BOSTON

Globe is a 6in barrel type and embossed on the upper rim F.O.D. SONS

Glass fount with a brass No.1 flat wick burner.

Condition - excellent, very clean beautiful looking lantern. Smooth tin, polished brass parts.
One pin hole was repaired on the bottom , very nicely done .
Some surface rust under the lid , but in no other locations.
Fount is clear and clean, very light staining.
New wick.

No visible condition issues.
Shelf ready piece ! 

** has not been  oil tested **