Look at the centers of the devices. Not on the edges of devices. On
Machine Doubling the MD can be seen on any outside edge. On the
Die Deterioration Doubling, it can be seen on the sides of the devices (on the fields) in the direction of the closest rim. But a doubled die enlarges the centers of the devices. So stop looking at the edges of the devices.



Note how the doubling enlarges the centers of the devices like an over inflated bike tube? That is where to look. Not on the edges of the devices.