Dr. Mario Diena (6 July 1891 – 4 November 1971)[1] was an Italian philatelist who was added to the Roll of Distinguished Philatelists in 1956.
References edit
- ^ Background notes on The Roll of Distinguished Philatelists September 2011, Roll of Distinguished Philatelists Trust, London, 2011. Archived here.
 | This article about a philatelist is a stub. You can help Wikipedia by expanding it. |