Card Number: SP-91
Card Type: Insert Color/Back Parallel
Insert Set: Portraits
Parallel set: Gray Border - Diamond Kings back
Card Attributes: Serial Numbered
Serial Number: 48/60
In 2005 Donruss and Upper Deck were competing to see which company could produce the set with the most confusing and numerous parallels and inserts. Upper Deck put up a good fight, but in the end I think Donruss won hands down with sets like this and Diamond Kings. Studio Portraits was an insert to Donruss' popular Studio brand. The old Studio sets are still some of my favorites from the early 90's.
The insert features a very nice photo of Robin. The parallels, I'm not sure if there is a base insert, feature various border colors and photo effects. To make it more interesting there is also an advertising variation on the backs. Donruss put their various brand logos on the backs. This grey border card has the Diamond Kings logo. It's possible this is also called the white border, I'm not sure it's a super confusing set. To make matters worse many of the cards are very low numbered. My example here being numbered to just 60. To make matters worse I don't think the whole checklist is paralleled.
While the set is confusing and frustrating I'm still glad things like this exist out there for me to hunt and find.