New information on a possible timeframe for the T206 350 only subjects (print group 2

[G1911]

Assuming that this article is in reference to what we call T206, that makes sense to me.

We have significant evidence that series in the ATC marketing project were not necessarily all produced at once or together, but there were waves of cards. T220 appears to have been 2 waves of a single series released and produced separately with a small time gap. T42, in the same physical card size as T206 and probably same sheet size, appears to have 25 unique cards to a sheet as we know from the no-prints in some backs, instead of the 50 card series. T218's third series has implications in the ledger, with its multiple issue dates, that it was also released in waves.

I would not assume that T206 series or groups were all distributed just like a Topps series, with all the cards constituting it available at once, as the hobby has generally done.