A handwritten note which accompanies this lot reads: 'This rifle is dead accurate at 50 yards using one dram of powder (no. 4. grain) & a ball wrapped in two of the linen patches. W. Keith Neal 17/3/1956'
Georg Keiser was probably one of the most distinguished of the Vienna court gunmakers. Born in 1647 he was still working 93 years later as a gunmaker. In later life he took to recording his age on the firearms he made - a pistol sold at Christie's King Street on 20 September 1989, lot 174, is signed 'Georg Keiser In Wienn Alt 90 Jahr'