Imagen mas actual del edificio

http://architecture.about.com/od/skyscrapers/ig/Skyscrapers/Leiter-II-Building.htm

http://s3.amazonaws.com/estock/fspid9/15/19/02/7/chicago-loop-1519027-h.jpg

Leiter II B.

http://www.paulrwilliamsproject.org/site_files/images/060963pv.jpg

Imagen mas actual

https://www.flickr.com/photos/teemu08/7184331883/

Postal del edificio.

http://sites.roosevelt.edu/hbarnett/2013/04/22/chicago-school-of-architecture-second-leiter-building/

Sears Building

http://3.bp.blogspot.com/_LJHBrB752xY/TL5hwTsFz9I/AAAAAAAAAlc/PqUj8x7fgEI/s1600/Le+Baron+Jenney+-+Leiter+Building+II+Chicago+(1889)+-+Vista.jpg

Edificio Leiter II

http://upload.wikimedia.org/wikipedia/commons/1/17/Leiter_II_Building.jpg

Imagen de la epoca

http://www.american-architecture.info/USA/CHICAGO/CHIC-LS/CHIC-LS.htm

Edificio Leiter II

http://farm4.staticflickr.com/3264/2307247471_578b990cf3_z.jpg

Imagen de la epoca

http://en.wikipedia.org/wiki/William_Le_Baron_Jenney

Foto de la epoca

http://www.paulrwilliamsproject.org/education/timeline/1889/

Leiter II Building

http://upload.wikimedia.org/wikipedia/commons/8/8d/Robert_Morris_Center_Leiter_II_Building_403_South_State_Street.jpg

Sears Building

https://s-media-cache-ak0.pinimg.com/originals/54/75/98/547598b5d439b84ea348a86e5b3c3765.jpg

Imagen mas reciente

http://architecture.about.com/library/blleiter-jenney.htm

Leiter II

https://www.bluffton.edu/~sullivanm/jenney/leiterwhole.jpg

Detalle de las ventanas

http://makingchicagohome.files.wordpress.com/2010/01/dscn0631.jpg

Sears

http://upload.wikimedia.org/wikipedia/commons/b/b7/Leiter_II_Building,_South_State_%26_East_Congress_Streets,_Chicago,_Cook_County,_IL.jpg

Imagen actual

http://vincemichael.wordpress.com/2010/04/19/sah-in-chicago/