127 Volts systems were also used in The Netherlands.
These were from the old 127/220 Volts 3 Phase networks in the older cities e.g. Leiden, parts of Amsterdam ( off memory ).
Now these systems are more or less phased out.
The 127 Volts was taken off the Phase to Earth
Between 2 Phases or 3 Phases the voltage was 2 x 220 Volts.

Italy used to have an unusual voltage too of 150/265 Volts in remote area's.

The product of rotation, excitation and flux produces electricty.