 Ron Brown, Fax invades the mail market, New Scientist , Vol. 56, No. 817 (Oct., 26, 1972), pp. 218–21.Herbert P. Luckett, What's News: Electronic-mail delivery gets started, Popular Science , Vol. 202, No. 3 (March 1973); page 85 Pictures, documents, and other files are sent as email attachments.
<meaning-changed>  Ron Brown, Fax invades the mail market, New Scientist , Vol. 56, No. 817 (Oct., 26, 1972), pp. 218–21.Herbert P. Luckett, What's News: Electronic-mail delivery gets started, Popular Science , Vol. 202, No. 3 (March 1973); page 85 Pictures, documents, and other files are sent as email attachments.
 Pictures, documents, and other files are sent as email attachments.