“Einar Erici (1885–1965) was a physician by profession, working at a tuberculosis hospital in Stockholm, even running a private medical practice. He was by then the most renowned Swedish expert of church organs and organ builders, and his archival collection is today held by the Swedish National Heritage Board. This archive includes mostly writings, such as letters and manuscripts for published articles and essays, but also more than 2 000 black and white photos – original prints, glass plates and film negatives”. – Swedish National Heritage Board

Photo: Priest, Valamo Monastery, Karelia, Russia (then Finland), 1930s. Father Venerius with a birchbark basket. (Photo by Einar Erici)

Ukrainian Air Force officers attend a graduation ceremony at the National University of Defence of Ukraine in Kiev, April 24, 2015. (Photo by Gleb Garanich/Reuters)

A competitor participates in the Tough Mudder challenge near Henley-on-Thames in southern England May 2, 2015. (Photo by Eddie Keogh/Reuters)

A patient buried in the hot sand looks out from under a shade that protects his face from the sun in Siwa, Egypt, August 12, 2015. In the searing heat of summer in western Egypt, at the hottest time of the day, sufferers of rheumatism, joint pain, infertility or impotence lie buried neck-deep in the sand of Siwa near Dakrour Mountain. Locals say taking a sand bath is a natural therapy with powers to cure many medical conditions. (Photo by Asmaa Waguih/Reuters)

The waning moon sets behind leafless sumac trees on a crisp, clear morning, Thursday, December 15, 2016, in Portland, Maine. Much of the northern Mid-Atlantic and Northeast will stay cold for the next couple of days as the arctic air remains stuck over the northern Appalachians, the National Weather Service said. (Photo by Robert F. Bukaty/AP Photo)

People and sea-gulls bathe in the sea as the sun goes up with red colors in Stralsund close to the baltic sea island of Rügen, on early November 23, 2016. (Photo by Stefan Sauer/AFP Photo/DPA)

A Syrian Democratic Forces (SDF) female fighter adjusts a mortar in northern Deir al-Zor province ahead of an offensive against Islamic State militants, Syria February 21, 2017. (Photo by Rodi Said/Reuters)

In this April 1, 2017 picture a man dressed as a “Harramacho” a traditional character from the Navalacruz carnival poses for a picture before a traditional Spanish mask gathering in the small village of Casavieja, Spain. Every spring they come from towns across central and northwestern Spain, clad in elaborate costumes – some as trees, others as bears, still others as monsters who could have emerged from some sort of fever dream. (Photo by Daniel Ochoa de Olza/AP Photo)