Reference Library - Colorimetry of Overprints
The links below to references in the literature which include analytical aspects of philately. These may be very important because the name of books and papers are often not indicative of details of their contents.
|Caswell, Lyman R.||Evaluation of Forensic Methods for Overprint Analysis||Collectors Club Philatelist, Vol. 91, No. 1 (2012). pp. 35-45|
|Caswell, Lyman R.||Reflectance Spectroscopy of Colored Overprints||IAP I pp 101-107|