1901 Instructions for preparation of "papier sepia" written by Rudolfo Namias in "The Photographic Times"
Google Books access is country-specific, but here is a link that works from some locations:
The Photographic Times
Help & Contact|Club news|About ipernity|History|ipernity Club & Prices|Guide of good conduct Donate|Group guidelines|Privacy policy|Terms of use|Statutes|In memoria
Rudolfo Namias' Papier Sepia
08 Dec 2018131 visits