Well done! You nailed it.
IN and the second "T" of TRUST are reliable identifiers for DDO-001 in all stages and grades. As far as I know, there are only three 1941 obverse dies with an extremely fat vertical on the second "T" of TRUST. DDO-001 has the bottom angled upward, from SW to NE. DDO-002 has the bottom mostly squared. And there is a third die pair that is a minor doubled die (second "T" and eyelid only) but is not currently listed. It has a much thicker crossbar and a slightly less thick but more "V" shaped vertical. (This third coin may be one of the several Wexler listings that currently is being revised.)