The points plate is only very slightly turned, the outer 'slots' are for a flat blade screwdriver pry point
It will never run like that anyway, the insulating washers need to be between the spring/connector and backing, you have direct grounds with return springs on both plus connector on left side 8)
Also, it's a good idea to move the wiring connectors to the 'inside' under flat washer and on top of fibre one instead of under bolt head, gives more clearance when cover is fitted.
The 'dot' on points cam is for assembly of advance mechanism