She fired only 74 rounds during this period as the smaller monitors spent a considerable amount of time acting as offshore aiming marks for the 15-inch monitors.
2.
The aiming mark was a 12 x 12 ( 30 x 30 cm ) silhouette figure that represented the outline of the head of a man aiming a rifle from a trench.
3.
While there is some colour fringing on the sight picture at the edges, the image quality is certainly more than capable of rendering a clear aiming mark once the ocular lens has been focused to your eyes.