[BradH]

For those who are unfamiliar with the T51/T6 series, I scanned one of my T51 Penn State cards with a T6 Penn State to compare the sizes. The colors tend to more bold and rich on the T6s. The artwork on the T6s were elongated (compared to the T51) to the size of the 5" x 8" card. The T6s are also on much thicker and sturdy cardboard, compared to the thin and somewhat flimsy T51s.

Also, I scanned a the back and side of one of my Murad packs with the 1909/10 tax stamp. This is a Factory No. 7, 3rd District pack.

And finally...An older T6 coupon which is slightly different from the one I posted above. You can see that this one says that the "College series will be ready to mail June 1, 1910." This indicates it was part of the early series, when the T6s were still not yet ready for delivery.