No self-respecting D310 thread should be without the following link of an older thread about the availability of the two types of tints (gray and greenish) for each of the 72 subjects in the set. To me it was a fun thread based on how much helpful info from a variety of members shaped and refined the tint theories over the years.
https://www.net54baseball.com/showth...highlight=d310
And here is an example of the greenish tint (the Hosp on the left, with the bonus partial Aldon Candy stamp on the back), and the gray tint (the trimmed awfully small Rapps on the right).
Brian