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.

For Lima, he purchased the 30 reis interpane block of Brazilian Bull's Eyes in 1987 at a Feldman auction.

[1] 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.

[4] 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.