I know the Plan, but I wanted be near the date of the ticket which is on sale on etasy (see attached picture).
This Ticket does not look authentic at all and has also a september date.
I really don't have a complete timetable of the grail adventure, so for me it was end of August and until they reached France it could be
If I would talk about authentic historical details, we should say good bye to the Zeppelin journey in that movie.
First point is, that never a Zeppelin named D-138 did exist. Second point is, that the Lakehurst disaster ushered in the end of German airship travel. Confidence in their safety was permanently destroyed, and further passenger transport in hydrogen-filled zeppelins was out of the question from now on. LZ 127 "Graf Zeppelin" was decommissioned a month after the accident and converted into a museum.
So no Zeppelin in 1938 did exist for passenger transports in Germany anymore.
I don't want to talk about all the other ridiculous paper props used in that movie.
It is no problem for me to change the date, but at the moment I don't know . . .
Unfortunately, if we start questioning the historical details in the Indiana Jones films, there will be very little left that we can use to make authentic replica props for us...