The product's output is the picture: an adding machine poster whose one image, a plus sign, is built from the digits it prints, in mixed faces and four overprinted colours.
MANUALE DI ISTRUZIONI
Brand Guidelines
Never draw the machine itself. Show what it *does*. Use dense layers of its actual output (numbers, letters, symbols) to construct the imagery. Rely heavily on primary colors and the `mix-blend-mode: multiply` overprinting effect to create depth and texture from the typography.
DESIGNER
Drawing a literal picture of the adding machine. The genius of the Olivetti aesthetic was illustrating the concept and energy of the machine's output, never just showing a boring photograph or flat vector drawing of a grey plastic box.