Literature CLASS 12 Towards Decimalisation Sushil Mehra Celestial Chronicles: Stellar Impressions Vijay Wadhwa Behavioursal Diversity Among Birds Vijay Wadhwa The Pigeon Vijay Wadhwa Pennywise Vijay Wadhwa Medan Post Office, Dutch East Indies, Since 1882 Sugianto Sudhana Pangolins on Coins and Stamps of the World Ajit Vartak Horses on Stamps (https://horse-stamps.ru/en) Nadya Lobodina The Handbook of Stamp Production Glen Morgan FRPSL RNCP Paleophilatelie.eu - The Place Where Paleontology and Paleoanthropology Meets Philately Michael Kogan Czechoslovakia Machine Advertising Cancels: The First Republic Period Steven Friedenthal Considering Auxiliary Markings Gregg Redner Myanmar Philately by Ko Toe Toe Kyaw Kyar Rainbow Stamp News Jeevan Jyoti Queensland Registered Handstamps and Labels Jeremy Hodes Catálogo Filatélico México Especializado Siglo XXI (2001–2025) / Mexico Philatelic Catalogue Specialized 21st Century (2001–2025) Luis Alejandro Malanco Reyes La Catastrophe Kendall Sanford Air Crash Mail of the World Kendall Sanford Visit the AUSVIPEX 2025 Show