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51. Broadcasting from a boat in the middle of the Potomac River

84_4_5_9_01_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
1902
Format:
images
 

52. Group at Potomac River demonstration

84_4_5_9_03_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
1902
Format:
images
 

53. Nathan B. Stubblefield's harmonica. This was the first musical instrument to be broadcast

Wrather_84_4_01_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

54. Coil wire, wound and insulated, used in 1881

Wrather_84_4_02_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

55. Coil wire, wound and insulated, used in 1881

Wrather_84_4_03_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

56. Telephone magneto "ringer" used by Nathan B. Stubblefield, side view

Wrather_84_4_04_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

57. Telephone magneto "ringer" used by Nathan B. Stubblefield, front view

Wrather_84_4_05_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

58. Telephone magneto "ringer" used by Nathan B. Stubblefield, alternate side view

Wrather_84_4_06_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

59. Telephone magneto "ringer" used by Nathan B. Stubblefield, rear view

Wrather_84_4_07_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
 

60. Telephone magneto "ringer" used by Nathan B. Stubblefield, top view

Wrather_84_4_08_tb
Collection:
Nathan B. Stubblefield Collection,
Publication date
2012
Format:
images
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