Device for Adjusting Cannon Trajectory and Accuracy 12x18 Giclee on canvas Coffee hydrastis 3x (6

Device for Adjusting Cannon Trajectory and Accuracy 12x18 Giclee on canvas Coffee hydrastis 3x (6\"Series: Industrial America Invention Artist: Unknown Period: Source country: USA Source Year: 1883 After firing a canon, the most difficult task was to repeat the shot by setting the gun back in the original firing position. Accuracy upon a military target was crucial and saved lives. This device was a way to correct for recoil and place the shot on the original target 12 inch by 18 inch Giclee print on Canvas. All files are stored digitally and are

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