Wilbur Wright,
Wilbur Wright letter (June 14, 1899…
(1899 |noyear)
“ I enclose one dollar currency for which you may send me "Experiments in areodynamics" Langley Yours truly Wilbur Wright This work was published before January 1, 1928, and is in the public domain worldwide because the author died at least 100 years ago. ”
