South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
Union Junction Interlocking Tower, Bounded by Federal, Guilford, Royal...
Significance: The tower is part of the Pennsylvania Station complex, which represented the peak of railroad development in Baltimore. Its design, construction, and associated machinery are representative of ra... More
Union Junction Interlocking Tower, Bounded by Federal, Guilford, Royal...
Significance: The tower is part of the Pennsylvania Station complex, which represented the peak of railroad development in Baltimore. Its design, construction, and associated machinery are representative of ra... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
Union Junction Interlocking Tower, Bounded by Federal, Guilford, Royal...
Significance: The tower is part of the Pennsylvania Station complex, which represented the peak of railroad development in Baltimore. Its design, construction, and associated machinery are representative of ra... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
Union Junction Interlocking Tower, Bounded by Federal, Guilford, Royal...
Significance: The tower is part of the Pennsylvania Station complex, which represented the peak of railroad development in Baltimore. Its design, construction, and associated machinery are representative of ra... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
Union Junction Interlocking Tower, Bounded by Federal, Guilford, Royal...
Significance: The tower is part of the Pennsylvania Station complex, which represented the peak of railroad development in Baltimore. Its design, construction, and associated machinery are representative of ra... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
South Station Tower No. 1 & Interlocking System, Dewey Square, Boston,...
Significance: South Station's interlocking system was a prototypical solution to the problem of handling the huge numbers of track and signal changes required at a large railroad terminal. The interlocking sys... More
Union Junction Interlocking Tower, Bounded by Federal, Guilford, Royal...
Significance: The tower is part of the Pennsylvania Station complex, which represented the peak of railroad development in Baltimore. Its design, construction, and associated machinery are representative of ra... More