Displaying: 31901 - 31950 of 219,213

Showing valves for operating shield sec.C, EBT

1 gelatin dry plate glass negative

Men on and below scaffolding on a construction site with a ladder on the right

1 gelatin dry plate glass negative

No image available

Boiler

1 gelatin dry plate glass negative

Boiler

1 gelatin dry plate glass negative

No image available

Construction site with a ladder under an arch

1 gelatin dry plate glass negative

Construction site with a ladder under an arch

1 gelatin dry plate glass negative

No image available

Showing 1/2 of shield for sec.C, EBT

1 gelatin dry plate glass negative

Showing 1/2 of shield for sec.C, EBT

1 gelatin dry plate glass negative

Looking northerly in shaft of section

1 gelatin dry plate glass negative

Half or rear end of sec.C shield in shaft

1 gelatin dry plate glass negative

Construction site with timbering

1 gelatin dry plate glass negative

No image available

Construction site with wooden framing and possibly steel framing

1 gelatin dry plate glass negative

Shield in sec.C, EBT

1 gelatin dry plate glass negative

Shield in sec.C, EBT in shaft

1 gelatin dry plate glass negative

Sec.C bulkhead, shield and timbering for supporting sidewall forms in shaft

1 gelatin dry plate glass negative

Showing bulkheads on sec.C shield

1 gelatin dry plate glass negative

Timbering in shaft of sec.C, EBT

1 gelatin dry plate glass negative

Timbering under shield sec.C, EBT

1 gelatin dry plate glass negative

Half of shield and wooden center and part of sidewall in shaft, sec.C, EBT

1 gelatin dry plate glass negative

Looking easterly in bottom of shaft of sec.C, EBT

1 gelatin dry plate glass negative

Sec.C, EBT tunnel shield, bracing etc. in shaft

1 gelatin dry plate glass negative

Conduits south side sec.D, EBT at Fiske Building

1 gelatin dry plate glass negative

Conduits south side sec.D, EBT

1 gelatin dry plate glass negative

Crack in sill under window 112 StateSt.

1 gelatin dry plate glass negative

Cracks over window 132 State St.

1 gelatin dry plate glass negative

Crack in building 132 State St.

1 gelatin dry plate glass negative

Ducts on south side sec.D, EBT

1 gelatin dry plate glass negative

Arrangement of ducts south side of sec.D, EBT

1 gelatin dry plate glass negative

Looking easterly in sec.C, EBT

1 gelatin dry plate glass negative

Looking easterly in sec.C, EBT

1 gelatin dry plate glass negative

Photograph from upper platform, sec.C, EBT

1 gelatin dry plate glass negative

Showing cracks in Ames building

1 gelatin dry plate glass negative

Crack in Ames Building

1 gelatin dry plate glass negative

Crack in Ames Building

1 gelatin dry plate glass negative

Crack in Ames Building

1 gelatin dry plate glass negative

Boilers - power plant for sec.C

1 gelatin dry plate glass negative

Boiler room of powerhouse, sec.C EBT

1 gelatin dry plate glass negative

Air compressors sec.C EBT

1 gelatin dry plate glass negative

Lowering air lock, Sec C. EBT

1 gelatin dry plate glass negative

Lowering air lock, sec.A, EBT

1 gelatin dry plate glass negative

Lowering air lock, sec.A, EBT

1 gelatin dry plate glass negative

Getting ready to lower air lock sec.C, EBT

1 gelatin dry plate glass negative

Showing air lock for sec.C, EBT getting ready to lower same

1 gelatin dry plate glass negative

Interior view of a tunnel, 1902

1 gelatin dry plate glass negative

Interior view of a tunnel with workers, possibly near an air lock

1 gelatin dry plate glass negative

Inside a tunnel with men at work on the right

1 gelatin dry plate glass negative

Concrete sheeting test section at Ames Building, Sec F EBT, Boston, Mass., December 27, 1902

The concrete sheeting test is for the East Boston Tunnel of the subway system. The labeled sections in the image read "Sidewall," "Concrete Sheeting," "Back-Wall" and "Foundation of Ames Bldg."

Conduits, pipes, manholes etc., south side State St. at Brazer Building, Boston, Mass., December 24, 1902

The below ground structure of the second Brazer Building, designed by Cass Gilbert, is seen in this image. Subway construction was taking place at this site.

Test of concrete beam #5 with 4 painted corr. rods

1 gelatin dry plate glass negative

65 to 66 Long Wharf

1 gelatin dry plate glass negative