Notgeld
Recenty I finished the excellent book "Germany - Memories of a Nation" by Dr. Neil MacGregor. If you're interested in Germany or history in general, I highly recommend this richly illustrated book. From the point of view of a banknote collector it's also interesting because a whole chapter is dedicated to the era of Notgeld, issued during the First World War and especially in the first years after the war. This chapter is illustrated with a beautiful selection from the British Museum of the many, many different local notes issued by German towns in that period.
I've added a special page for my Notgeld collection (dropdown menu to the right) where I don't show every individual note I have but rather the different towns I have notes from. I have local money from German towns, Austrian towns but also from German towns which nowadays are in Poland. Proving once again to me that collecting banknotes can be a fascinating history lesson.
Many other countries have also issued “Notgeld” perhaps the most famous are the AUSTRIAN AND GERMAN Notgeld but France,Brazil, Rusia,Spain, Mexico etc have many more even the so called broken usa banknotes are a type of emergency money among many more…( see the famous papermoney dictionary by A. Pick (1978).
Or visit my study on catalogues http://www.billetesmunicipales.com/catal..
P.S. the coupons you show in Spain from the Blue Division is a fake. Coarse counterfeit stained with coffe grounds they never existed and deserve to be removed from your site.