T212 uncut sheet from 1911 -
discussed on Net54 back in 2010, auctioned by H&S that fall (image from H&S).
Note the bottom row in the image - runs horizontal, the rest are vertical.
My interest is that T207 was likely printed via the same process (cards running both horizontally and vertically) as evidenced by an Adams card (shown previously) as well as the example from REA a few weeks ago that has parts of 5 different backs showing (image from auction).