Some 200 works, which are on loan from German’s Deutsches Bergbau-Museum Bochum, have been transferred to Tehran to go on show at the National Museum of Iran, Cultural Heritage, Tourism and Handicrafts Minister Ali-Asghar Mounesan said on Sunday.

“The [selected] works of the mining museum of Bochum entered the country through Imam Khomeini Airport on December 17 and then were transferred to the National Museum of Iran under escorts and necessary protection and security measures,” Mounesan said.

“The exhibit will be featuring the history of mining in the world from the Stone Age to recent centuries, whose works are from 20 different countries on five continents.”

This would be the seventh international exhibition of historical and cultural works that will be opened at the National Museum of Iran over the past seven years since President Hassan Rouhani took office in 2013, he said.

The exhibit is slated to open doors to the public in near future, Mounesan said.

In return, an Iranian exhibition, featuring works from the archeological findings of Chehrabad Salt Mine, will be held at the mining museum in Bochum, the official added.

Founded in 1930, the Deutsches Bergbau-Museum Bochum – as the Leibniz Research Museum for Geo-resources – is tasked with collecting, preserving, investigating, exhibiting, and teaching the material heritage of the mining industry.

Organized by Ruhr-Universiat Bochum in collaboration with Iran’s Research Center for Conservation of Cultural Relics and Zanjan’s Cultural Heritage, Tourism, and Handicrafts Department, the exhibit will display 200 objects and tools discovered in the ancient mine in Zanjan province.

Salt mummies are the highlights of the findings in the mine.  In 1993, miners in the Douzlakh Salt Mine, near Hamzehli and Chehrabad villages in Zanjan province, accidentally came across a mummified head, dated to 300 CE. The head was very well preserved, to the extent that his pierced ear was still holding the gold earring. The hair, beard, and the mustaches were reddish, and his impressive leather boot still contained parts of his leg and foot, according to the Ancient History Encyclopedia.

However, in 2004, the miners discovered yet another “saltman”, which was followed by further excavation unearthing remains of a human body along with a large number of artifacts made of wood, metal tools, clothing, and pottery.

In 2005, a systematic excavation began, three more mummies were excavated, and a sixth remained in situ, due to lack of funds for its storage. The context of the remains suggested that a collapse in the mine had caused the death of the miners in question.

The first mummy, dubbed the “Saltman”, is on display in the National Museum of Iran in Tehran. He still looks very impressive.

This particular “saltman” was originally dated based on the archaeological material found with him. Later, the mummy was carbon dated, which placed him in 500 CE (1750 BP, that is, “before present” or 1750 years ago), the height of the Sasanian Empire. The second “saltman” was carbon-dated to 1554 BP, which placed him in the same era as the first “saltman”, the Sasanian era.

The third, fourth, and fifth “saltmen” were also carbon dated. The third body was dated and placed in 2337 BP, the fourth body in 2301 BP, and the fifth mummy was dated to 2286 BP, placing them all in the Achaemenid period.

The individual “Saltmen” has a few secrets of their own, for instance, the first “saltman” that was discovered had the blood type B+, and 3D imaging of his skull revealed fractures around his eye and other damage that occurred before death by a hard blow to the head. His clothing (the impressive leather boot) and his gold earring, show a person of some rank; the reason for his presence in the mine still remains a mystery.

Saltman No. 5 had tapeworm eggs from the Taenia sp. genus in his system. These were identified during the study of his remains. The find indicates the consumption of raw or undercooked meat, and this is the first case of this parasite in ancient Iran and the earliest evidence of ancient intestinal parasites in the area. The best preserved and probably the most harrowing of the saltmen is Saltman No. 4. A sixteen-year-old miner, caught in the moment of death, crushed by a cave-in.