The <a href="https://en.wikipedia.org/wiki/Daisy_(advertisement)" class="extiw" title="w:Daisy (advertisement)">Daisy Girl</a> advertisement from Lyndon B Johnson's <a href="https://en.wikipedia.org/wiki/United_States_presidential_election,_1964" class="extiw" title="en:United States presidential election, 1964">1964</a> Presidential campaign.
Lyndon B Johnson's 1964 Presidential campaign
<a rel="nofollow" class="external free" href="https://archive.org/details/Election_Ads_02">https://archive.org/details/Election_Ads_02</a>, specifically <a rel="nofollow" class="external text" href="http://ia700303.us.archive.org/9/items/Election_Ads_02/Commercial-LBJ1964ElectionAdDaisyGirl.ogv">here</a>