I have been adding signatures to some Israeli notes, and saw them using the the Grego-Julin calender, but they also feature the Hebrew calender, as in the local calender. And local calender takes precedense over the Grego-Julian calender.
That's the case for this note from Grego-Julian 1955 to Hebrew 5715:
And every following numbers, from P# 24 to P# 68 (basically all the notes under the Bank of Israel), needs to have calender changed, to their respective Hebrew calender year, if that's what we go with.
Maybe referee @her.terk can help or have an opinion? Thanks! :D