Tetrahedral Kite, 1907.
- from our story 'Alexander Grahm Bell’s Space-Age Tetrahedral Kites'
Tetrahedral Kite, 1907. A Tetrahedral Kite Designed By Alexander Graham Bell Being Flown From The Back Of An Automobile. Photograph, 29 April 1907.
Tetrahedral Kite, 1907.