O “livro antigo” na biblioteca do Museu de Etnografia e História do Douro-Litoral.

This study is the result of the research work developed under two stages carried out in the North Regional Directorate of Culture, one in 2012/2013 and another in 2017. We had the opportunity to analyse "old book" units that are part of the library of the extinct Museum of Ethnography and History of Douro-Litoral, which is currently in the Palace of the Viscount of Vilar de Allen, commonly known forCasa de Allen. We intend to disclose the existence of this bibliographic heritage and describe some of its characteristics, trying to understand its insertion and relationship with the old museum.