David John Hartley: pittsburgh bridge
David John Hartley: berks line
David John Hartley: chicago el
David John Hartley: hotel hall
David John Hartley: franklin square
David John Hartley: magic wall
David John Hartley: disco ball
David John Hartley: front street
David John Hartley: philly el 2
David John Hartley: Fluorescent Light
David John Hartley: Creek in Frederick