I grew these last year from a pack of dried beans bought from a Turkish deli, they are definitely runner beans. I got very poor germination and managed to save a mere half dozen beans.
It is quite possible these home saved beans and have been cross pollinated with Scarlet emperor that they were growing next too,I hadn't realised at that point that the Gigante were runners too.
I will be sowing my home sown saved beans as well as my Franchi Spagna and we shall see what we get, of course I may get something unexpected from my home sown beans.