Your talking about the date and mintmark issue? The is called the beginning of DDD. (Die-Deterioration-Doubling) it is the start of Die Deterioration. It always affects the devices in the direction of the closest rim. Date on the right, Liberty on the Left and The tops of the motto.

Sometimes it the die marriage has lasted for a even amount of time and can also be seen on the reverse of the coins.
Not a doubled die or Machine Doubling, just die wear on the single squeeze dies. Because the profile of all the devices on these dies, the fields show the die wear. On the older multi-hubbed dies, the outside edges of the devices were affected. No premium for this. The last 500K coins struck with these dies will show a progressive process of the further breakdown with these dies.

Sometimes it the die marriage has lasted for a even amount of time and can also be seen on the reverse of the coins.
Not a doubled die or Machine Doubling, just die wear on the single squeeze dies. Because the profile of all the devices on these dies, the fields show the die wear. On the older multi-hubbed dies, the outside edges of the devices were affected. No premium for this. The last 500K coins struck with these dies will show a progressive process of the further breakdown with these dies.
























