If you happen to be in London between now and late March, and are interested in German notgeld of the late 1910s/early 1920s, the British Museum has something you may want to see. The exhibition "Currency in Crisis (https://www.britishmuseum.org/whats_on/exhibitions/currency_in_crisis.aspx)" shows about 100 notgeld issues from the museum's vast collection.
Curated by Johannes Hartmann (https://www.britishmuseum.org/research/research_projects/all_current_projects/collaborative_doctoral_awards/johannes_hartmann.aspx), the show demonstrates how notgeld was not only some local alternative currency. Many issues had political messages or advertised the issuing city or region. "Currency in crisis – German emergency money 1914-1924" opened a few days ago and can be seen until 29 March 2020.
Christian
Not all dates have been set and March is a candidate, so I have a chance, but the message of the exhibition is a bit ... uhhh ... unsurprising?
Peter
Depends on who sees it, I guess. ;) The British Museum has an enormous notgeld collection - roughly 18,000 notes, I think. Hartmann picked 100, and apparently has one room to show them. So some museum visitors may simply pass (there is so much else to see), others will say, ha, I know all this ... and a few may find the exhibits interesting.
Christian