"A duelling pistol is a type of pistol that was manufactured in matching pairs to be used in a duel, when duels were customary. Duelling pistols are often single-shot flintlock or percussion black-powder pistols which fire a lead ball. They were made in identical pairs to put both duelists on the same footing. Not all fine pairs of pistols are actual duelling pistols, though they may be called so." - (en.wikipedia.org 09.03.2020)
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