[Interior, boiler room.]

[Interior, boiler room.]

[Interior, boiler room.]

Manhattan College. Interior, boiler room

Furnace and boiler room

Furnace and boiler room

[Interior, boiler room.]

[Interior, boiler room showing fire damage.]

[Interior, detail of meters.]

71 Morton Street. Interior, boiler

153 Madison Avenue. Redlich & Company, silversmiths. Interior, boiler room

[Interior with machinery.]

116 West 32nd Street. Milliner. Interior, boiler room

[Machine room.]

Franklin Street and Greenwich Street. B. Fischer and Co. Factory, boiler room.

[Interior, radiator manufacturing shop.]

[Interior, detail of air ducts.]

Interior, manufacturing shop with boiler, oven and bags

["Gulf Queen", boiler room looking to starboard.]

Ajax [Ajax Cloth Sponging Co.] Boilers