I like how his "dot on the paper" is halfway inbetween the 8 and the A of AMERICA.
That little lump at the bottom left quadrant of the final 8 is supposed to be the bottom of the 7. It does match up if you do an overlay of the 1887 logotype on the 1888 logotype. I don't know if any other traces of the 7 are visible on any of the known MS pieces. Since the "overdate" is so hard to see, the variety is usually identified by die markers, typically the rim cud over the E in UNITED.