Sorry for the delay but is any of this a help?
I have 3 working radiator shutter actuating stats, 2 of which are Aurelia size. The slightly smaller one has no markings and is new and unused.
I also have a complete set of the fittings from the top of an Aurelia radiator to work the shutters including the thermostat holder and one separate thermostat holder.
Hope this helps.
Chris