I am currently searching for any books by Linus Yale Junior in particular the one where he describes in detail the exact process he used for decoding the Day & Newell parautoptic lock. His first book published in 1856 only gives a brief outline of the process he used and all other references I've come across are purely anecdotal. I have searched through some newspaper articles where the process is meant to be described in detail but when you find the articles the details are not there. Any help on locating any other books or articles by him would be appreciated.

Also on page 53 of "Lure of the Lock" (John M Mossman collection) are the wooden key bits those produced by Linus Yale Junior during his demonstrations of defeating the Day & Newell locks? I have "American Genius" and the CD of the collection but has anyone seen it in the flesh so to speak. Its a long way to go and visit from the UK.