ARs3 Carriage of narrow gauge, made by the belgian company <i>Ateliers Germain</i> and bought in 1905 by the Minho and Douro division of the Caminhos de Ferro do Estado (State Railways), that became part of the Companhia dos Caminhos de Ferro Portugueses (Portuguese Railways Company) in 1927.
Unknown author<span style="display: none;">Unknown author</span>
REIS, Francisco Cardoso dos; GOMES, Rosa Maria; GOMES, Gilberto et al. <i>Os Caminhos de Ferro Portugueses 1856-2006</i>. [S.l.]: CP-Comboios de Portugal e Público-Comunicação Social S. A., 2006. 238 p. <a href="//commons.wikimedia.org/wiki/Special:BookSources/989-619-078-X" title="Special:BookSources/989-619-078-X">ISBN 989-619-078-X</a>