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Borr Livrustkammaren negative.tif Ur Johan Rings bssmakarverkstad Borr av stl med fyrsidig form Ena nden tappen ngot koniskt avsmalninande andra nden borren ngot tillplattad med skarpa kanter svller ut ngot fr att sedan smalna av original caption ca size mm size mm borr LRK Johan Ring bssmed place of origin original filename