[Unidentified machinery.]

[Unidentified machinery.]

[Unidentified machinery.]

[Unidentified machinery.]

[Man using unidentified machinery.]

[Man with unidentified machinery.]

[Machinery.]

[Unidentifued machinery.]

[Industrial machinery.]

[Interior with machinery.]

Machinery in shoe factory

[Interior with machinery.]

[Factory building, machinery on roof.]

United Shoe Machinery Company. Slicing machine

Machinery in shoe factory

Machinery in shoe factory

[Machinery in a Brooklyn Rapid Transit machine shop.]

[Diagram of an unidentified cylinder head.]

[Workers in a Brooklyn Rapid Transit machinery shop.]

[Workers in a Brooklyn Rapid Transit machinery shop.]