Welcome to and thank you for visiting my collection webpage! Apart from a particular interest for Vietnamese mint stamps, I love collecting postal documents about Vietnam, about Hans Christian Andersen, about Vincent van Gogh, and, above all, about Mathematics. Recently, I have also moved on to banknotes featuring mathematicians and physicists.

     Hope you would enjoy your time here awhile. If you come up with any suggestions, please let me know.

     These images are scanned from my own collections.