http://ayearofholidays.files.wordpress.com/2012/03/1896_telephone.jpg

http://mohistory.org/files/imagecache/display/files/images/looking-south-to-fest-hal.jpg

http://www.antiquetelephonehistory.com/images/centennial2.jpg

http://www.matthewferrara.com/wp-content/uploads/2013/02/old-telephone.jpg

http://10.4.0.2/cgi-bin/overmain?args=dHlwZT1kZW5pZWQmd29ya3N0YXRpb249MTAuMjAxLjAuMjAwJnVybD1hSFIwY0RvdkwzZDNkeTV6ZFhCbGNtSjNZV3hzY0dGd1pYSnpMbU52YlM4elpDOW5iR0Z6Y3kxdGIyeGxZM1Z
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Katz, James E. "Telephone." Encyclopedia of Science, Technology, and Ethics. Ed. Carl Mitcham. Vol. 4. Detroit: Macmillan Reference USA, 2005. 1916-1920. World History in Context. Web. 20 Nov. 2013.
http://www.pbs.org/transistor/album1/addlbios/bellag.html