• Country
• United States of America (USA)

• Manufacturer / Brand
• Duck Co., J.J. and William B.; Toledo, OH

• Year
• 1920 ?

• Category
• Morse-Equipment & TTY, RTTY, TDD etc.

• Radiomuseum.org ID
• 120870

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Overland Wireless Key 1644 - Duck Co., J.J. and William B.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 3 x 0 x 5 inch / 76 x 0 x 127 mm

• Notes
• Key with base of white marble and brass metal parts, 3/8-inch coin silver contacts for up to 20 amperes, price 6,75 USD.

• Price in first year of sale
• 7.00 $

• Mentioned in
• -- Original prospect or advert (W.B.Duck Catalog No.16, 1921)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 57 models, 34 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Duck Co., J.J. and William B.; Toledo, OH