• Country
• United States of America (USA)

• Manufacturer / Brand
• Wireless Specialty Apparatus Co.; Boston (MA)

• Year
• 1917 ?

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 280924

• Main principle
• Tuner pre 1926 (not a wave trap)

• Wave bands
• Long Wave and/or Very Low Frequency (VLF).

• Power type and voltage
• Dry Batteries

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Radio Receiver Long Wave Type - Wireless Specialty Apparatus

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• Two primary tuning controls. 

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 68 models, 66 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wireless Specialty Apparatus Co.; Boston (MA)