As a rule, political economists of the present day do not take the trouble to study the history of money; it is much easier to imagine it and deduce the principles of this imaginary knowledge Alaxander del Mar, A History of monetary systems (1901)
"Money in Greece", order options here
What part of the total money supply is physical cash, i.e. coins and banknotes? How did that ratio evolve in Greece from 1836 to 1999?