Miquel has kindly sent through the two interesting photographs above. This is the Spanish version of Hymns of Dawn, and as such is extremely rare. This version was published in 1925. It differs from the English language version in that some hymns were taken from the original, while others were taken from Spanish evangelical hymnals of the day.
This is a second or new edition of the Himnario de la Aurora del Milenio. The first edition dates from 1919, and may have been published as a supplement to the Spanish Watch Tower. This subject is Miquel’s speciality, but he has never seen a copy.