I presume that some Gazelles came out of the factory custom made to customers specifications with Italian threaded bottom bracket shells. Does anyone know how reasonable it is to assume that a normal Gazelle came out of the factory with an English threaded BB shell?
I think that never a new frame left the Gazelle factory with italian threading.
Only possibility is that someone stripped the BC treads accidentally and that the original BB threading was chased with italian thread cutting tools.
Even for a "dream bike", Gazelle wouldn't make a frame with italian threads. It would just be a silly request, not making any sense.