Boiler Tubes, Semi-Steel Locomotive Tubes, Kalamein Boiler Tubes,

MACK'S INJECTORS for LOCOMOTIVES

LIFTING AND NON-LIFTING,

Special Light Wrought Iron Pipe

Fitted with Converse Lock Joint for Water, Gas and Compressed Air,

CASING, DRIVE PIPE, ETC., ETC.

All Sizes, up to 16 inch, inclusive.

NATIONAL TUBE WORKS CO.

Cor. of CLINTON and FULTON STS., CHICAGO.