File:Vintage Arithma Addiator Mechanical Handheld Calculator, Made In Germany, Variants Were Produced From 1920 - 1982, This Calculator Was A Promotional Item For Ser-Ap-Es (21295273712).jpg - Wikimedia Commons
Calculadora mecánica Arithma de addiator - YouTube
John Wolff's Web Museum - Slide Adding Machines
Amazon.com: Home Comforts Add Addiator Subtract Calculator Mechanical-20 Inch By 30 Inch Laminated Poster With Bright Colors And Vivid Imagery-Fits Perfectly In Many Attractive Frames : Hogar y Cocina
John Wolff's Web Museum - Slide Adding Machines
VINTAGE ADDIATOR UNIVERSAL STANDARD MODEL WEST GERMANY EARLY CALCULATOR & STYLUS | eBay
Addiator Juego de (4) máquinas de calcular de los años 2… | Drouot.com