Dear Rabbi Kornfeld: This is not really a daf question, but I was interested in knowing if there is any mekor for the seder of the parshios in the tefillin found in Qumran, which have the first parsha of Shemos followed by the first parsha of Devarim, and then the second followed by the second. This could be a shita in the beraisa in Menachos, but I wonder whether there is such a mekor. Thanks.