The dropouts are Gipiemme, the head tube is pressed and not cast, and my friend the frame builder and ex pro racer describes it as being a sprint frame... which is not a bad thing although it makes for a heavier frame and fork.
I will agree that it probably rides pretty nicely... the fellow who gave it to me said he enjoyed riding it from time to time.
I have not ridden the bike since it was acquired but will have to take it for a spin once I put everything back together... it is a spec too tall for me which is so often the case when I find bikes and if I played around with some things I could make the Bianchi an okay fit... but I already have a Ron Cooper that fits me like a glove.