Alexander Graham Bell

Alexander Graham Bell (HMBHW)

Location: Washington, DC 20005
Country: United States of America

N 38° 54.136', W 77° 1.765'

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Inscription
From the to floor of this building
was sent on June 3, 1880
over a beam of light to 1325 L Street,
the first wireless telephone message
in the history of the world.
The apparatus used in sending the message
was the photophone invented by
Alexander Graham Bell,
inventor of the telephone

This plaque was placed here by
Alexander Graham Bell Chapter
Telephone Pioneers of America
March 3, 1947
The Centennial of Dr. Bell's Birth
Details
HM NumberHMBHW
Tags
Year Placed1947
Placed ByAlexander Graham Bell Chapter, Telephone Pioneers of America
Marker ConditionNo reports yet
Date Added Friday, September 12th, 2014 at 3:57am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 324019 N 4307888
Decimal Degrees38.90226667, -77.02941667
Degrees and Decimal MinutesN 38° 54.136', W 77° 1.765'
Degrees, Minutes and Seconds38° 54' 8.16" N, 77° 1' 45.90" W
Driving DirectionsGoogle Maps
Area Code(s)202
Closest Postal AddressAt or near 1300 K St NW, Washington DC 20005, US
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