1 results containing "Wood engravings--1870-1880.--Reproductions--1940-1950."
This wood-cut [...] shows Prof. Graham Bell lecturing to an audience at Salem, Mass. [And] ... illustrating his demonstration by means of a telephone placed before his audience and communicating with his laboratory at Boston, fourteen miles away
1947. | 1 photographic print.
NYWTS - BIOG--Bell, Alexander [item] [P&P] | LC-USZ62-124121 (b&w film copy neg.)