Album Caminhos de Ferro do Douro
<bdi><a href="https://en.wikipedia.org/wiki/en:Karl_Emil_Biel" class="extiw" title="w:en:Karl Emil Biel"><span title="German photographer (1838-1915)">Karl Emil Biel</span></a>
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<a rel="nofollow" class="external autonumber" href="http://albuminasetc.blogspot.pt/2009/04/coleccao-emilio-biel-caminho-de-ferro_14.html">[1]</a>