Authors
Paul Leonard
The Royal Philatelic Society London (RPSL), 41 Devonshire Place, London W1G 6JY
DOI: https://doi.org/10.69525/jasqde.238 | Journal eISSN: 1524-7287
Language: English
Page range: 33 - 39
Published on: Jun 1, 2017
Published by: American Society of Questioned Document Examiners
In partnership with: Paradigm Publishing Services
© 2017 Paul Leonard, published by American Society of Questioned Document Examiners
This work is licensed under the Creative Commons Attribution 4.0 License.