Ralph Riccio was born in Bridgeport, Connecticut and is a retired US Army officer who has been interested in military history and military equipment since his youth. He has written and co-authored a number of books on Italian small arms, armor and artillery, as well as several books on aspects of Irish military history. He has also written numerous magazine articles both in English and Italian dealing with a broad spectrum of military subjects. He has a native Italian language fluency, speaks several other languages as well, and is active in translating books and magazine articles from Italian into English for Italian authors who specialize in military affairs. In 1981 he was awarded an honorary Italian knighthood. He lives with his wife Charlene in a rural community in Pennsylvania.
Mario Pieri is an Italian engineer, born in 1962 in Florence and currently resides in Rome. Always a military history researcher, focused on the military technology, Mario has used scale modelling primarily as an associative and educational medium. Actively publishing since the 1980s, his current pursuits are research, editing, and translations.