libro: El espejo del orden de Charo Crego Castaño
https://books.google.es/books?id=yZlgUF9B-LsC&pg=PA163&lpg=PA163&dq=f%C3%A1brica+de+Purmerend,+Oud,+1919&source=bl&ots=PEBOpfX778&sig=ACfU3U3Wtqsckg-02C8ftKILgR8yb8LyOQ&hl=de&sa=X&ved=2ahUKEwiumcy0-NngAhUh-YUKHRxXDFUQ6AEwAHoECAcQAQ#v=onepage&q=f%C3%A1brica%20de%20Purmerend%2C%20Oud%2C%201919&f=false