VAM Question?

Linkage:

http://vamworld.wikispaces.com/

VAM's can be defined by die state, although they are usually numerically related. For instance, a VAM-23 with an additional clash or die break worthy of designation would be VAM-23A. Of course, this is only in cases where die marriages are known - some Morgans were struck in numbers such that hundreds of dies were required for the issue, and that makes researching die marriages pretty difficult.

There are undoubtedly many VAM's from the same die marriage, with differing number designations. Those are corrected as they are caught.