First published in Spanish, 1999
Written by Paolo Cavalli
Work of Paolo Cavalli
10 pages (E-book), published by Selfpublished
Illustrated with drawings
Language: English
1 entry
Cover photograph
Creators Title Comments & References Page Categories
Paolo Cavalli The Watermark Codex method to mark envelopes, invisible marks which can be activated when being used
Data entered by Lorenz Schär, December 2023.