http://www.wcpo.com/news/local/story/Covington-Jeweler-Celebrates-Its-150th-Anniversary/ziNCu2Vmc0y0ZhFFzg0jRg.cspx
http://www.victoriana.com/Jewelry/motchjewelers.htm
http://www.diamondcouncil.org/Documents/SJN_060106_00_00_001_c.pdf