Michael Leddy of Orange Crate Art wrote about his favorite pencil, the Eberhard Faber Mongol (ad copy: “writers say it actually stimulates flow of thoughts”), and included this attractive 1964 Life magazine ad for the Mongol and other Eberhard Faber products.
My two favorite parts: the Mongol's twin-pack packaging, and the copy for the Colorbrite pencils ("Intense Color at a feather touch").