Digitised and available via the Internet Archive, see link in this record. Autotype is defined as a "true representation of the original" (see O.E.D). The term autotype was coined in the late 19th century and referred to a process for making photographic prints using a carbon process. Many autotype prints were produced and the process was popular well into the 20th century, particularly since autotype prints are very long lasting (it is said that an autotype could last up to 500 years without fading).--Wikipedia, retrieved November 2020.