Ajax [Ajax Cloth Sponging Co.] Boilers

Furnace and boiler room

Furnace and boiler room

Woolworth Building, boiler room behind east boilers.

[Interior, boiler room.]

[Interior, boiler room.]

[Interior, boiler room.]

Sixth Avenue. Boilers

[Interior, boiler room.]

Envelope factory, glue pot and steam boiler.

[Interior, boiler room.]

Dyeing Establishment, steam boiler.

Steam Boiler, dyeing establishment.

[Interior, gas appliance showroom, boiler and oven.]

Woolworth Building, boiler room.

Woolworth Building. Boiler room.

Woolworth Building, boiler room.

Queensboro Hall, new boilers.

Interior, manufacturing shop with boiler, oven and bags

Postal Life Building. Boiler room.