An albumen photo, c.1870; the area around the Divan-e 'am is being used to store cannons

Source: ebay, May 2008

*The Diwan-i-Am in Agra Fort, a photo by Joseph David Beglar, 1870's* (BL)

*[Interior of the Diwan-i-Am, Fort, Agra.]; a photo from the 1880's* (BL)

A gelatin silver photo, c.1890's

Source: ebay, Nov. 2007

A professional photo, c.1910

Source: ebay, Sept. 2011

A modern photographer's view

Source: http://flickr.com/photos/tigerpalace/432453681/
(downloaded Feb. 2008)

The photographer calls this one "4 Curves"

Source: http://flickr.com/photos/deepsan/292052380/
(downloaded Feb. 2008)

And consider the geometry of a single pillar

Source: http://flickr.com/photos/mfitch/2011493001/
(downloaded Feb. 2008)