[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit machinery shop.]

[Workers in a Brooklyn Rapid Transit machinery shop.]

[Machine in a Brooklyn Rapid Transit machine shop.]

[Workers in a Brooklyn Rapid Transit shop.]

[Brooklyn Rapid Transit machine shop.]

[Machinery in a Brooklyn Rapid Transit machine shop.]

[Man standing next to an early bulldozer in a Brooklyn Rapid Transit machinery shop.]

[Brooklyn Rapid Transit shop.]

Brooklyn Rapid Transit.

Brooklyn Rapid Transit.

Brooklyn Rapid Transit.