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Outside of sidewall sec.D, EBT

1 gelatin dry plate glass negative

Ducts on South Side of sec.D at Exchange Building looking easterly

1 gelatin dry plate glass negative

Method of laying ducts on sec.D, EBT taken in front of Exchange Bldg

1 gelatin dry plate glass negative

Brooken Concrete Beam goes with 1615

1 gelatin dry plate glass negative

Same as 1631 concrete Beam test with round steel rods parallel

1 gelatin dry plate glass negative

Looking up State St. from sec.C, EBT

1 gelatin dry plate glass negative

State St. looking easterly from derrick platform sec.C. EBT

1 gelatin dry plate glass negative

Looking up State St. from sec.C EBT

1 gelatin dry plate glass negative

Air compressors sec.C EBT

1 gelatin dry plate glass negative

Showing concrete sewer sec.D, EBT at Board of Trade Building

1 gelatin dry plate glass negative

Machine, sec.E, E.B.T.at Brazer Building, State Street, Boston, Mass., September 4, 1902

Workmen cluster around the machinery next to the second Brazer Building in this image.

Machine on north side state between Exchange St. and Devonshire St.

1 gelatin dry plate glass negative

Looking up State St. from shaft on sec.C, EBT

1 gelatin dry plate glass negative

Machine between Exchange St. and Devonshire St. on State St.

1 gelatin dry plate glass negative

View of low pressure compressors, sec.C

1 gelatin dry plate glass negative

Air compressors, sec.C

1 gelatin dry plate glass negative

Rear of shield for sec.C, EBT in shaft

1 gelatin dry plate glass negative

Showing shield in shaft for sec.C, EBT

1 gelatin dry plate glass negative

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

Part of building 383 Dorchester Ave.

1 gelatin dry plate glass negative