They can vary quite a bit in location. They should be under the date area, to the right of the bust and not touching the outside edge of the die.


Sometimes the mint mark might be angled.

But unless it is a RPM, there is no extra premium for these. (the first one is a RPM)
Sometimes they can even fall in wrong locations:

This one the location was to high.
This one the punch missed the previous location:

Sometimes they miss the location several times:

When these last three events happen, then they are collectable as RPMs.
But on your coin, because they were punched by hand just alter locations of the mint marks.