Comelli was an expert in the philately of his home country and won many awards for his displays, including the Grand Prix National in 1993 for his Dom Pedro II exhibit and the Grand Prix International at Indipex 2011 in New Delhi for his exhibit Brazilian Mail to Foreign Destinations. Unfortunately, it was in India that he contracted the pneumonia that was to kill him. Comelli was a close friend of Hugo Goeggel and Angelo Lima. For Lima, he purchased the 30 reis interpane block of Brazilian Bull's Eyes in 1987 at a Feldman auction.
Comelli was a regular contributor to the Fakes Forgeries Experts journal of the AIEP, and in 2002 wrote a masterful history of the ownership of the Xiphopagus Triplet (The "Pack Strip") of Brazil for The London Philatelist.
Comelli was a director of the AIEP (Association Internationale des Experts en Philatélie) and was elected as a director of the Fédération Internationale de Philatélie in 2008. For 17 years, he was President of the Brazilian Philatelic Chamber, and he was Editor of MOSAICO, the journal of Brazilian philately. He was a Fellow of the Royal Philatelic Society London.
Comelli graduated in Economics (1965) from the Federal University of Minas Gerais. He married Jane Vargas Neto Comelli, and they had four daughters, Flávia, Carla, Cláudia and Cíntia. His career was in real estate and the stock exchange and he was an executive of several companies.
- Lot. No. 4052, The Dr. Hugo Goeggel Collections (Part 1). Corinphila Auktionen, Zurich, 2013, p. 13.
- Background notes on The Roll of Distinguished Philatelists September 2011, Roll of Distinguished Philatelists Trust, London, 2011. Archived here.
- A.I.E.P. Director Paulo Comelli passed away A.I.E.P., 2011. Retrieved 18 April 2014.
- Odenweller, Robert P. (2010) "Paulo Rodolpho Comelli RDP FRPSL, 1943-2011" in The London Philatelist, Vol. 120, No. 1386, p. 195.
- Comelli, Paulo. (2002) "The History of the Xiphopagus Triplet (The Pack Strip)" in The London Philatelist, Vol. 111, No. 1300, pp. 331-337.
- PAULO RODOLPHO COMELLI (1943 - 2011) fefibra.org.br, 2014. Retrieved 18 April 2014. Archived here.
- Selo em homenagem a PAULO R. COMELLI Fabio Flosi, 2011. Archived here.
- PAULO RODOLPHO COMELLI FIAF Hall of Honor, 22 June 2013. Archived here.