The Enschedé 12½ comb perforators (Large Holes) 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: Criddle, H.M., (pg. Aug-14)Published in: Volume 7, Issue 1, pg. 1-17, 1972