{{Short description|Italian philatelist}} Dr. '''Mario Diena''' (6 July 1891 – 4 November 1971)<ref>''[http://www.abps.org.uk/Awards/Roll_of_Distinguished_Philatelists/RDP_Background_20111231_LR.pdf Background notes on The Roll of Distinguished Philatelists September 2011]'', Roll of Distinguished Philatelists Trust, London, 2011. [https://web.archive.org/web/20130819000841/http://abps.org.uk/Awards/Roll_of_Distinguished_Philatelists/RDP_Background_20111231_LR.pdf Archived here.]</ref> was an Italian philatelist who was added to the Roll of Distinguished Philatelists in 1956.
==References== {{Reflist}} {{DEFAULTSORT:Diena, Mario}} Category:Signatories to the Roll of Distinguished Philatelists Category:1891 births Category:1971 deaths Category:Italian philatelists
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