I had to draw every character by hand on quadrille graph paper -- there were four weights of Bell Centennial — pixel by pixel, then encode them raster line by raster line for the keyboard.
Tive de desenhar cada carácter à mão em papel milimétrico — havia quatro estilos  para a Bell Centennial — pixel a pixel, e depois codificá-los linha raster a linha raster para o teclado.