Les Années Folles: Investigations dans la France des Années 20 is a 1988 role-playing game supplement published by Jeux Descartes for Call of Cthulhu.
Contents Les Années Folles: Investigations dans la France des Années 20 is a supplement in which the setting is 1920s France, blending postwar levity with eerie investigations in the "Crazy Years."https://rpggeek.com/rpgitem/56047/les-annees-folles-investigations-dans-la-france-de
Reviews Casus Belli #45https://archive.org/details/casus-belli-045/page/n31/mode/2up #51https://archive.org/details/jeux-et-strategie-51/page/n15/mode/2up
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