<a href="https://en.wikipedia.org/wiki/Perles-et-Castelet" class="extiw" title="w:Perles-et-Castelet">The Castelet</a>, near <a href="https://en.wikipedia.org/wiki/Ax-les-Thermes" class="extiw" title="w:Ax-les-Thermes">Ax-les-Thermes</a> (No. 803, <i>Les <a href="https://en.wikipedia.org/wiki/Pyrenees" class="extiw" title="w:Pyrenees">Pyrénées</a> <a href="https://en.wikipedia.org/wiki/Ari%C3%A8ge_(department)" class="extiw" title="w:Ariège (department)">Ariégeoises</a></i> series): Railway <a href="https://en.wikipedia.org/wiki/Viaduct" class="extiw" title="w:Viaduct">viaduct</a> and <a href="https://en.wikipedia.org/wiki/Hydroelectricity" class="extiw" title="w:Hydroelectricity">hydroelectric</a> plant.
Éditions <a href="https://en.wikipedia.org/wiki/fr:Labouche_Fr%C3%A8res" class="extiw" title="w:fr:Labouche Frères">Labouche Frères</a> (<a href="https://en.wikipedia.org/wiki/fr:Toulouse" class="extiw" title="w:fr:Toulouse">Toulouse</a>), début 20<sup>e</sup> siècle <i>(Upload : <a href="//commons.wikimedia.org/wiki/User:DePlusJean" title="User:DePlusJean">DePlusJean</a>)</i>.
<a rel="nofollow" class="external text" href="https://sites.google.com/site/ariegecpa7/perles-et-castelet/p-c-labouche">Cartes Postales Anciennes (CPA) de l'éditeur Labouche sur la commune de Perles-et-Castelet dans l'Ariège</a>.