16 March 2000 New methods to identify forgeries in philately
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Proceedings Volume 3851, Scientific Detection of Fakery in Art II; (2000); doi: 10.1117/12.379869
Event: Photonics East '99, 1999, Boston, MA, United States
Abstract
The purpose of my presentation is to describe to you the major problems confronting us in philately today, to raise your interest in these problems and to ask for your suggestions to solve them. It is not my intention to hold a scientific dissertation. No sooner had the first postage stamps come on the market, in 1840, when the first forgeries appeared. These were to the detriment of the postal authorities as they were used for franking mail. However, only a few years later, stamp collecting began and provided forgers the opportunity to reproduce expensive stamps and t sell them to collectors. But because printing methods differed, these forgeries are relatively easy to identify.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paolo Vollmeier, "New methods to identify forgeries in philately", Proc. SPIE 3851, Scientific Detection of Fakery in Art II, (16 March 2000); doi: 10.1117/12.379869; https://doi.org/10.1117/12.379869
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KEYWORDS
Infrared radiation

Chemical analysis

Spectroscopy

X-ray fluorescence spectroscopy

Chemical elements

Ions

Printing

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