PIVAL - RADIO . Rare lithographed card signed "Cheval" , circa 1926 Very nice condition. Printing house : " Libma S.C " ; Pierrot au clair de lune. 38,5 x 29 cm . Edmond Picard, Paris and Tulle (Corrèze). Metallurgy (1918). Manufacture of small electrical equipment, radio sets and accessories (1922). Earphones, headphones, loudspeakers, transformers, capacitors (1926) (source: radiomuseum.com)