A quality Italian maker regulator assembly right side (NA-spec passenger side) on Fiat and Bertone X1/9s from 1977-82 with mechanical cable-driven wind-up windows.
Also referred to as the window winder mechanism.
In model year 1977, X1/9s from serial# 56981 take this style unit.
Earlier cars used regulators whose cables are 2" shorter and mount in a slightly different orientation.
New and unused.
Note: Stock photo shown.