Most lines and dots on the battleship stamps are attributed to the intentional activities of the siderographers in laying out the subjects on the plate. Here however, is a very obvious example of an unburnished scratch on the plate. There is a curved red line in the margin above the stamp, independent of the design in the example below.
It is clear to me from this example as well as the broad variety of unburnished dots and lines that these plates were not viewed as tier one items in the BEP's quality control process.
scratch is located inside the black circle