This image is the frontispiece of Sir Thomas Roe (ca. 1581-1644) from the book The Negotiations of Sir T. Roe in his Embassy to the Ottoman Porte from the year 1621 to 1628, a collection of his correspondence during his time as the English ambassador to the Ottoman Empire.
The town of Alcalá de Henares is located outside of Madrid, the current capital of Spain. In the late-fifteenth century, it served an important purpose as the home of the archbishop. His lavish palace was lavishly decorated, but considerably smaller than other royal homes.
This stereograph, captioned "A reservoir after evaporation – turning up the salt – salt fields, Solinen, Russia," is an image of female workers breaking up the crust of salt formed after the evaporation of a reservoir and forming the salt into mounds for later collection.
Colonialism and imperialism can take many forms, but more often than not these do not entail direct and strict control from a distant imperial metropole.