In new research, archaeologists examined a heavy, round metal body of Särdal in the West Swedish region of Halland. Due to its shape and size, the researchers seemed an artifact in the Bronze Age, but it turned out that the object is made of copper and zinc-sidewalk, typical for the iron age and subsequent periods.
Plano Confix album from äralal, Halland, Sweden. Credit image: Sabatini And others. DOI: 10.1016/J.jasrep.2025.105312.
The old ways were found in the fall of 2022 in the village of Serdal along the western coast of Sweden.
A piece of artifacts has proven that it is called Plano-Convex Pentor-the first of its kind in the country.
“Bacteria is often called” Book “alloys or” cast cakes “, common throughout the bronze and iron, but they differ in size, shape and composition.”
“It is a round artifacts with a flat -top face, the top in general, and a bottom supported differently or the underside.”
“It is manufactured by pouring the melted metal into a mold or in a shallow cavity in the ground.”
“Most of these alloys have” Shambania “and” Qassi “, which confirms that the metal has been poured into an open casting mold, while the underside is generally soft because it was not in contact with air during production.”
“Being a relatively simple product, it is widely spread across Eurasia and has not only been used in the prehistoric period, but in historical times.”
Its diameter of särdal 14-15.3 cm, about 2.5 cm, and weighs 1223.5 grams.
The surface of the alloy shows significant effects of corrosion, especially on the harsh surface of the upward trend.
The overall shape, size, and protein weight suggest that it could be the bronze age.
Archaeologists said: “Initially, we thought that Särdal is to return to the Bronze Age.”
“However, as it was found alone and cannot be a historian in its archaeological context, we decided to run theoretical and chemical analyzes to determine its composition and suggest a possible timeline.”
Analyzes provided unexpected results, as it was found that the alloy is made of copper alloy and zinc-sidewalks that were typical for the iron age and later periods.
“Once the results arrived, and thanks to the open nature of the international scientific community of scientists who work with archaeological issues in the past, we realized that theoretical and diocese characteristics of Särdal were very close to a group of artifacts from two artifacts found in the Isseland region, in northern Istren Poland,” the researchers said.
Studies from the Baltic regions, which were intensively proportional to West Sweden and South Docndenevia during the Romanian era before the Romanian, indicate that a softening alloy of Cerdal and Yawawa Lielland was already present in the region during the second half of the first millennium BC.
“We suggest that the interconnected grapes from Halland and the crying of bars from Poland can be considered as a result of maritime trade in minerals that link the Scandinavian countries and the Baltic Sea to the Iberian Peninsula during the corresponding period with the Scandinavian Iron Age before the Roman, after the ancient rugs in the delayed flow era.”
they paper It will appear in the October 2025 issue of Archaeological Science Magazine: Reports.
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Serena Spatini And others. 2025. Mineral Trade in the Iron Age between the Atlantic Ocean and the Baltic Sea: new visions of the first full alloy Plano Confix found in Sweden and the alloy bars from AHa Lielland in northeastern Poland. Archaeological Science Magazine: Reports 66: 105312; Doi: 10.1016/J.jasrep. 2025.105312