The abstract WB logo used for the <i>Looney Tunes</i> series in the 1960s.
Warner Bros.
This screen capture is taken from the 1964 Looney Tunes cartoon <i>Senorella and the Glass Huarache</i>, produced by <a href="https://en.wikipedia.org/wiki/DePatie-Freleng_Enterprises" class="extiw" title="en:DePatie-Freleng Enterprises">DePatie-Freleng Enterprises</a>.