Clearly it’s too much to ask where Vyse is supposed to have seen dates written in old hieratic.
Vyse didn't find dates at all. This is what I think best explains these anomalous hieratic numbers:
I do not insist this is correct but, given Vyse's form, I consider it as valid an explanation as any other.
BTW I notice in your example here:
The ONLY number value that has been rotated are the UNITS, just as Gardiner's comment seems to imply. The thousands and hundred signs in your example remain upright.
Edited 1 time(s). Last edit at 14-Feb-18 16:43 by Scott Creighton.