PART II. Die Varieties:

Large Over Small Mintmarks

Definition: A smaller size mintmark is first punched into a working die.  It is followed by a large mintmark bearing the same letter(s).

The image below shows an 1879-CC Morgan Dollar, minted in Carson City, Nevada.  A larger CC-mintmark was punched over a smaller CC-mintmark. This is known as 1879 CC, VAM 3 and 3A.

Image is courtesy of VAMworld.