I've owned 2 Olagneros ( Milanese builder, one made by Vanni Losa who built frames for Magni PEP and Cinelli ) , a Bianchi and a Guerciotti; all Italian, all the built with English (BSA) threaded bottom brackets. Not only is the threading different but the width also, BSA is 68 mm, Italian 70 mm so we don't just refer to the threading, but the classification English vs Italian so my description was entirely accurate.
Aelle is a perfectly acceptible frameset, and the success of the build is also dependent upon the unions ( in this case investment cast ) fork crown and not least the skill of the artisan.
The Rossin frame is identified also by the various engravings.