This is the Scheintod gas pistol. It was manufactured in Germany after the First World War. According to some of my sources, this odd derringer fired 12 mm cartridges which contained powdered tobacco--that is, snuff. This would hopefully send the target into a sneezing fit.
If you have a good enough aim, could you shoot the tobacco up someone's nostril?
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That'll kill 'em in twenty years or so!
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