Ladawan:A group of young men learning Morse code.jpg

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Sumaryo

Pagladawan
English: Black-and-white image of several men wearing early 20th century headphones, learning Morse code together
Petsa
Pinagkunan Derived from File:Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14755529704).jpg originally published 1922
Kagsurat Lescarboura, Austin C. (Austin Celestin), 1891-

This file was derived from: Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14755529704).jpg

Paglisensya

Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:A_group_of_young_men_learning_Morse_code.jpg

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Several men learning Morse code together

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depicts English

inception English

1 Enero 1922Gregorian

media type English

image/jpeg

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5930e6a05320f8a25027497cd6d52a7e9ae0f869

determination method English: SHA-1 English

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2,924,015 byte

height English

1,669 pixel

width English

3,059 pixel

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presente22:00, 2 Abril 2023Thumbnail para sa bersyon kaitong 22:00, 2 Abril 20233,059 × 1,669 (2.79 MB)BriUploaded a work by Lescarboura, Austin C. (Austin Celestin), 1891- from Derived from File:File:Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to (14755529704).jpg originally published 1922 with UploadWizard

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