Hoshang Master instructs the students

Watching his father pursue stamp collection as a hobby, Hoshang Master's philatelic journey began when he was 10. A former chemistry professor at St Xavier's College, who retired in 2007, Master has collected one lakh stamps in 60 years. These are from Mozambique's colonial rule, France, England, USA, Iran, Kuwait, Uganda, Tanganyika, pre- and post-Independent India, and Germany.