Ignition coils - which is which

[Sylvester]

Who can confirm the wiring plug connection on the outer and inner coil on a twin-spark? 

Each of the two plugs have three wires.  Brown and red/yellow are common on both plugs, but the third wire differs between the two.  On the one plug the third wire is striped purple/black and on the other one it is striped green/black.  Which one should be connected to the outer coil? 

Thanks

 

[tok-tokkie]

 

[Sylvester]