Hi Gary, I've developed quite an interest in currency, (USA) it actively competes for my coin budget!!! I have a good start on FRN and silver certs, a nearly complete US Note set, lots of large size with the gorgeous artwork, a smattering of fractionals, and even some colonials.
One of the most interesting is a United States note for $55, which reads"The Bearer is entitled to receive Fifty five Spanish Milled Dollars, or an equal sum in Gold or Silver according to a Resolution of CONGRESS of the 14th January 1779."
We talk about the history of our coins, but the currency is at least as interesting.
I have found a lot of tremendous good buys at coin shows, a lot of dealers have currency on the side of the table which they have accumulated as part of coin buys, and often are willing to sell it cheap (sometime in bulk bag or box style) just to get rid of it!!! I have a pile of world currency from odd sources like that which I haven't done much with.
The
ANA has some excellent books in their online bookstore...
The only other currency I focus on is French Indochina and South Viet Nam...Very colorful, not too expensive when you can find it.
I suppose the message is, Keep an eye out for that currency while pursuing the coins...
All the best,,,Dennis