I note that banking apparently drove the entrenchment of the technology: "The most common use of the Pantelegraph was for signature verification in banking transactions."
Bonelli's Typotelegraph is also an 1862-era invention: http://www.hffax.de/hauptteil_faxhistory-Dateien/Caselli02.g... (from http://www.hffax.de/html/hauptteil_faxhistory.htm)
