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
An English translation of the 1988 memorandum circulated by Hans-Dietrich Genscher ptomoting the idea of a European monetray union.