For me a full back run has all backs up to and including the BL460.
An Ultra back run should add non production cards but not include "errors". This consists of the blank back and both Br Lenox/OM. I don't consider either one an intentional production color change, possibly more of a test run.
Cobb for me is an advertising piece that was given out, not part of the set.
Last edited by atx840; 03-06-2012 at 07:47 PM.
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