This S.S.S. Side Spring Safety model is made by C.T. Ham Mfg. Of Rochester,  N.Y. 
This Fire Department model features a slide off Guard and Splash shield.
Ham's signature style "D" tubing 
Nickel plated over brass.
Only markings is Ham's patent dates stamped on the burner collar.

Clear unmarked 0 tubular globe 

Condition  - excellent,  no major damage or cracks to the brass.
No visible working condition issues. 
80+% of its original nickel plating intact
One slight dimple dent in the top left tube.
This model is hard to find in this kind of condition .

** has not been oil tested **

** item is on consignment,  ships from PA **