[B_man_Al]

Your low readings ( highlited in red) on the points side of the coil are normal. As the voltage at this point is continuously alternating between 0v when the points are closed and 6v when open, when the car is running, the voltmeter will average these two voltage levels, giving you a some what lower reading than you might expect. The actual average voltage reading will depend on the dwell setting of the points.