17th Century Continuation 2 Ca. 1650: Application of bridle as a bearing for the tumbler in the flintlock. Ca. 1660: Steinschloß-Magazinpistolen von Mathias Kalthoff, Kopenhagen Ca. 1660: Flintlock revolver with four barrels each having 2 charges introduced by Cornelius Klett, Salzburg. 1668: Holst invents a small mortar that is later called Coehorn. Multiple barrels are attached to a board parallel or behind each other and fired simultaneously. Ca. 1670: Introduction of rifles with double locks (Match- and flintlock in the Austrian Army. 1673: Prove marks: In Liège Belgium, a law is implemented that: ‘All Liège weapons have to undergo a testing control by the city and have to be tested and stamped by a sworn in controller. 1680-1690: Lorenzoni rifle with magazin beneath fthe barrel or 14 shots in lead balls and black powder.