Wikimedi'Òc

Science And Invention Nov 1928 Cover.png - Swtpc6800

Science and Invention Nov 1928 Cover 2.jpg - Swtpc6800

Science and Invention July 1925 cover.jpg - Racconish

Science and Invention July 1925 cover (cropped).jpg - Racconish

The Isolator.jpg - Racconish

Science and Invention July 1925 cover (cropped and retouched).jpg - Racconish

The Isolator (cropped).jpg - Racconish

Diagnosis By Radio, 1925 (telemedicine).webp - Prototyperspective

Science and Invention 1927-09.jpg - Epolk

Science and Invention 1927-01.jpg - Epolk

The Isolator (colorized).jpg - Racconish