Pinto Inline and Shadow appear in Mecanorma catalogs where the design is credited to Roy Sprong/Rapitype. Both styles were announced in 1972 [Ariadne]. Three solid weights (Lightline, Medium, Heavy) are shown in the Solotype catalog.
In 2010, Dick Pape made an autotraced freebie digitization of Pinto Inline incl. a “Speckled” style and a partly cleaned-up version (used for the sample).