BIBLIOGRAPHY
Kipper und Wipper — Meyers Konversations-Lexikon, 4. Auflage, Band 9 (1887), S. 745
Bibliographisches Institut, Leipzig — Wikisource transcription.

Claims Supported by This Source
- States the etymology is from the Low German "kippen" (to clip) and "wippen" (to seesaw; to throw coins onto a scale so the pan dips), and that it was a name for monetary lords in the 17th century who melted down good coins to strike debased ones.
- Notes that the value of good money reached a point where one good Thaler was worth 7–8 Thalers in 1621, and 16–20 Thalers in 1623 (source not cited). The period 1621–1623 is particularly known by this name, and light or counterfeit coins are called Kipper- or Kipfergeld.
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