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Keywords from Image Description:
LymanHaskell multichamber gun . Cannon working on the multicharge principle of the american inventors Azel Lyman und James Richard Haskell from Main propellant kg gunpowder auxiliary propellants kg each Mehrkammergeschtz der Amerikaner Azel Lyman und James Richard Haskell von Hauptladung kg Schwarzpulver Zusatzladungen je kg