A session of the Postal Union Congress in 1885, held in the main chamber of the Portuguese Supreme Court in Lisbon.
<bdi><a href="https://www.wikidata.org/wiki/Q17318065" class="extiw" title="d:Q17318065"><span title="Portuguese engraver">Caetano Alberto da Silva</span></a>
</bdi>
<a rel="nofollow" class="external text" href="http://hemerotecadigital.cm-lisboa.pt/OBRAS/Ocidente/1885/N222/N222_item1/P5.html">Hemeroteca Digital - "O Ocidente: revista ilustrada de Portugal e do estrangeiro", N.º 222 (21 Fev. 1885)</a>