• Country
• Germany

• Manufacturer / Brand
• Roland-Werk AG; Berlin

• Year
• 1925 ??

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 201902

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Special material, described in the notes.

• from Radiomuseum.org
• Model: Walzenschalter - Roland-Werk AG; Berlin

• Notes
• Walzenschalter, 3 Schaltstellungen. Alle Bauteile außer Kontaktmaterial sind aus Hartgummi.

• Author
• Model page created by Reiner Scholz. See "Data change" for further contributors.

• Other Models

• Here you find 6 models, 6 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Roland-Werk AG; Berlin