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[Letter from Chicago Concrete Breaking Co. to Alex Bradford - November 8, 1939]
Letter from the Chicago Concrete Breaking Company to Alex Bradford discussing the efficacy of hydraulic cartridges within the field demolition. The results of the Chicago Concrete Breaking Co. was that hydraulic cartridges were simply too slow and ineffective when compared to pneumatic pavement breakers in locations where explosives were not plausible.
Date:
November 8, 1939
Creator:
Chicago Concrete Breaking Co.
Object Type:
Letter
System:
The Portal to Texas History
Saint Louis & O'Fallon 5
A photograph print showing the Saint Lois & O'Fallon 5, 2-6-0, E. St. Louis, IL.
Date:
December 8, 1939
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Chicago, Burlington & Quincy (CBQ) 7015
A photograph print showing Chicago, Burlington & Quincy (CBQ) 7015, 4-8-2 (B-1-A), Chicago, IL.
Date:
October 8, 1939
Creator:
Kennedy, R. H.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
St. Louis & Southwestern (SSW) 426
A photograph print showing the St, Louis & Southwestern (SSW) 426, 2-6-0, East St. Louis, IL.
Date:
December 8, 1939
Creator:
Graves, Ralph L.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Alton (A) 87
A photograph print showing Alton (A) 87, 0-6-0, with slope-back tender, Alton, IL.
Date:
November 8, 1939
Creator:
Graves, Ralph L.
Object Type:
Photograph
System:
The Gateway to Oklahoma History