The use of Raman Spectroscopy in Philately Become a memberEnjoy the benefits of membership for just £10.00 per year TSC libraryView our back numbers catalogue. Member downloads available Visit our blogFind out more about the fascinating story of Transvaal postage history Author: Kruger, G., (pg. 111-114)Published in: Volume 42, Issue 4, pg. 83-116, 2007