Popper Stella Reproducing Piano first playing after renovation... | To better understand the business relationship of Popper and Welte esp. when they stopped their cooperation, as well as the technical miracles of
![The 'Welte Licht-Ton-Orgel' or 'Phototone Organ' . Edwin Welte, Germany, 1936 – 120 Years of Electronic Music The 'Welte Licht-Ton-Orgel' or 'Phototone Organ' . Edwin Welte, Germany, 1936 – 120 Years of Electronic Music](https://120years.net/wordpress/wp-content/uploads/Welte-Light-Tone-organ.jpg)
The 'Welte Licht-Ton-Orgel' or 'Phototone Organ' . Edwin Welte, Germany, 1936 – 120 Years of Electronic Music
![Ad: Welte-Mignon, 1926. /Namerican Advertisement For Welte-Mignon Reproducing Pianos, 1926. Poster Print by Granger Collection - Item # VARGRC0409744 - Posterazzi Ad: Welte-Mignon, 1926. /Namerican Advertisement For Welte-Mignon Reproducing Pianos, 1926. Poster Print by Granger Collection - Item # VARGRC0409744 - Posterazzi](https://cdn11.bigcommerce.com/s-yzgoj/images/stencil/1280x1280/products/1639619/2308676/apim32b1k__17854.1626808478.jpg?c=2)