Jim
I like your style of thinking regarding the T206 cards. It goes back to when I first posted my
T206 REFERENCE thread 5 years ago (or even before then).
Jefferson Burdick and Bill Heitman many years ago clearly defined the structure of the T206 set by establishing easy to understand terminology regarding
the various series (150-only....150/350....350-only....350/460....460-only....So. Lgr.).
The cryptic term "
Print Group #" in T206 Resource somewhat troubles me, because it is not a clearly definable term that instantly clues you in as to which
series a T206 is in. In some cases it blurs them over.
Two guys here are stating that Elberfeld (portrait-Washington) is a "150/350" card. So where is a
PIEDMONT 150 or
SWEET CAPORAL 150 in PSA's pop
report of this card ? ? Perhaps, they are invisible

And, these two guys say the same for G. Brown (Washington) and Dahlen (Brooklyn). But....PSA's pop report says
NO ! and
NO !
150/350 ---------------------- 350-only ---------------------- 150/350 -------------------- 350-only
150-only -------------------- 350-only
Furthermore, here are examples of two more SAME image T206's with different team captions and in different Series.
350-only ---------------------------- 350/460 ------------------------ 350-only --------------------- 350/460
TED Z
T206 Reference
.