https://caseknives.com/pages/our-story
http://knifetalkin.blogspot.com/2013/07/the-history-of-w-r-case-sons-and.html
http://knifetalkin.blogspot.com/2013/07/the-history-of-w-r-case-sons-and_19.html
https://www.casexx.com/Library/TangStamp.asp