At the beginning of Daredevil S2E7 - Semper Fidelis, why are there 48 stars on the US flag behind Frank Castle as he enters the courtroom? Is this something which is specific to New York? Or is this some kind of statement?
Note how the flag is displayed; fully extended on the wall. This tells me the flag is not "current" to the episode, as it is actually US law that flags must fall freely (read Section C of the Respect For The Flag code).
Since the US had only 48 states as recently as 1959, it is likely the courthouse was either built before that year and carried the 48-star flag, or the display piece is meant to reflect US history (much like Confederate flags adorned some southern states court houses until recently). Either way, it's clear that the flag is just that; a display piece.