According to Wikipedia, 10 Lira became 1 (Old) Shekel. 5 years later, 1000 Old Shekels became 1 New Shekel.
from google:
אגורות, agorot) is a denomination of the currency of Israel. The Israeli currency – the new Israeli shekel (ILS) – is divided into 100 agorot.
That's why I thought 1 ILs = 100 ILa. Or is it 1 ILS = 10 ILa = 100 agorot?