| 
    This postcard by Hartmann is one of many produced by Hartmann, Valentine 
    and others using a photograph taken during the day to create a night-time 
    moonlight effect. 
    The lighting in the windows on the left looks realistic, but the traffic 
    and pedestrians on Princes Street suggest that the photograph was taken at 
    1.35pm rather than 1.35am.  See the clock tower on the North British 
    Railway Hotel (which incidentally was, and still is, kept a couple of 
    minutes fast, so that travellers are less likely to miss their trains). 
    This card was posted from Edinburgh to London in 1904. |