That's pretty close.
It's one thing to feel sure something exists, and another entirely to prove it exists.
A lack of excellent scans hinders the search, as I believe most differences will be very minor.
I know for sure that at least Tinker fielding had three different identifiable printings within the 150 series.
The couple with Chicago visible on the uniform
The ones with Chicago mostly removed
And ones where it's not there at all.
Conroy has differences that are divided by 150/350, And also comes at least 3 different ways. Putting three good scans near each other makes it like one of those "spot the differences " puzzles.
The upper one has partial stripes and no gray shading at the back of the cap
The middle one has strong stripes and gray shading
The last has no stripes and does have gray shading.
There are plenty of other differences
The lack of stripes is usually a 350 thing, but the middle one has both stripes and the shading of the no stripes.
Except for that shading I'd think the middle one was earliest, as the proof has solid lines between the head/back and the background.
I did a couple experiments at organizing the visuals for a couple things and for T206 I'm going to have to learn database stuff.
Even finding good scans is slow going, since the places like LOC don't organize their cards the way any of us would, making a search a bit painful.