The only thing I can find on this is a listing of processes that date it to 1853 and list it as an alternate method of atrograph. Interestingly enough, atrograph is listed as an alternative method ot melanograph. Perhaps it is related to carbon printing? The 'melan' part tickles something in my memory that I can't quite place but that I remember has to do with carbon printing of some type of another...

Anyway, here is the link I have on this...

http://www.sharlot.org/archives/photographs/19th/book/

- Randy