The confusion about if a card is a 350 only or not is one of the reasons I bumped the print group thread it explains the cards being discussed in this thread.
https://www.t206resource.com/Print%20Group%201.html
https://www.t206resource.com/Print%20Group%202.html
https://www.t206resource.com/Print%20Group%203.html
https://www.t206resource.com/Print%2...Checklist.html
https://www.t206resource.com/Print%2...Checklist.html
Once you understand them you can see why Dahlen Brooklyn is one of the 28 subjects found with a factory 30 sheet number, he's in the same print group as the other 27 subjects.
img706.jpg