The first advertisement of a silicon transistor made in Silicon Valley, by Fairchild Semiconductor in 1958.  The ad appeared in various publications; this scan is from <i>Electronics</i>, August 15, 1958.  The 2N696 and 2N697 transistors described differ only in their current gain (2N696 15 to 30, 2N697 30 or higher).
Unknown; presumably the copyright, if any, was owned by Fairchild Semiconductor Corporation.
1958-08-15
<p><a rel="nofollow" class="external free" href="https://www.americanradiohistory.com/Archive-Electronics/50s/Electronics-1958-08-15.pdf">https://www.americanradiohistory.com/Archive-Electronics/50s/Electronics-1958-08-15.pdf</a>
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one page out of this online magazine scan