№1. Cannon aiming device.
Unknown maker. Germany. 1569.
№2. Gunner's sight. Unknown maker. Europe, Germany (?). 1578.
№3. Gunner's sight. Hans Gruber. Nuremberg, Germany. Second half of the 16th century.
№4. Gun sight (artillery level). Unknown maker. Europe, Germany (?). 1580.
№5. Gun attachment with pinhole sight and double pendulum. Unknown maker. Europe (?). Circa 1580 (1560?).