How/why does PSA designate a card as being "optional" for inclusion in a Registry set?
The designation of "optional" precludes the card from being considered in the Registry set and is not used for any GPA purposes.
The attached card is not allowed in the David Ortiz Master set, nor the David Ortiz Master Topps set...however, it is allowed and in fact is a part of the David Ortiz Super Set composition. It is important to know that several other "relic" cards are in the Master Topps and Master Ortiz set compositions. What makes this one so different?
If the card, as you can see, is a Topps card, how could it be disallowed for the Topps Master set??