m1903 refurb

[old tanker]

NSN; 8030-00-934-3520 A composition formulated for filling the engraved graduations, numerals, letters and figures of scales or the like, to make them more visible.

Came in a variety of colors. Used to fill the graduations on gunner's quadrants, rulers, scales, sights, etc, all to increase legibility. Here are commercial products use for the same purpose.

In tank units the turret mechanic and the armorer generally had white, black and red stashed in their tool box, often to the dismay of priggish supply officers