Signature of <a href="https://es.wikipedia.org/wiki/Alexander_Graham_Bell" class="extiw" title="es:Alexander Graham Bell">Alexander Graham Bell</a>.
<bdi><a href="https://en.wikipedia.org/wiki/en:Alexander_Graham_Bell" class="extiw" title="w:en:Alexander Graham Bell"><span title="British-born American scientist and inventor known for the telephone (1847–1922)">Alexander Graham Bell</span></a>
</bdi>
2009-08-29
Own work by uploader traced by hand