war.io.1 on Instagram: "Invented in 1937, Leroy lettering turned shaky handwriting into precise and uniform letters.Professionals in engineering and architecture used it to make documents easy to read before computers. The system used templates and a mechanical scriber to guide the pen, keeping every character the same size and shape. This method reduced mistakes and made technical drawings and maps clear and consistent. You can see its influence in the strict lettering standards still followed