Yeah, I am starting to suspect that the "restored original cut" released in theaters after the SW-success could have been slightly different than the version that was later widely available on Betamax, VHS and LD.

The reason:

The different order of the arrest scene

Slightly longer SEN scene

(I bet both of those are leftovers from the "Warner Bros-cut")

I mean, your 16mm version do have the 4-5 minutes that the studio cut - restored, so why does it share the same editing that appeared on the Italian version, and the German version seems to be identical to yours.