When I loaned my car (1970 model 122S with lockable steering) to someone many years ago the ignition key broke and a new ignition switch was installed on the dashboard. The original lock (Neiman) was left as is, with the broken key bit left in the lock, but the wiring was disconnected and transferred to the new ignition switch. I was not told at the time and didn’t notice until recently, 25 years later, when I started working on the car to get it back on the road again.
At long last I have got round to trying to restore the lock. I got a new key and managed to extract the broken off key bit. The lock now works again (mechanically) but I have run into a problem connecting the wiring back to the old switch.
Here is a picture of the switch:



The two vertical spade terminals are together numbered 30, and the others, in a clock-wise direction, 57a, 15, 50 and 75. The wires to be connected to the switch are: (1) heavy black (connected to the battery positive/starter motor), (2) smaller gauge black (connected to number 4 terminal of the fuse box), (3) heavy red (connected to number 1 terminal of the fuse box), and (4) green (connected to the starter motor solenoid).
The wiring diagram in the manual is not clear:



Here is what the manual says about the lock positions:



Anyone here who can help me re-connect the switch?

Simplesimon