, Marcus Adrian Roxburgh , Hans D. J. Huisman The craft box recovered from a 13thcentury hillfort at Lõhavere, Estonia, contained a well-preserved selection of copperalloy objects. The limited corrosion on these objects allowed a more accurate estimation of their compositions through nondestructive surface measurements. Using the resulting pXRF database, this study explored a possible correlation between the types of objects and their material composition. By comparing the most common contaminants with the alloying metals, a qualitative estimation of the material quality was conducted. The results showed that despite a considerable overlap between object types, the material composition dif fered based on the items’ appearance and function. A shift from brass to bronze and tinned objects coincided with a greater availability of tin at the hillfort, as well as a rise in silver smith ing. Moreover, objects with a silver appearance seemed to be more desirable in this period, apart from some highstatus personal ornaments and traditional spiral tube decorations. The results possibly reflect different metalworking practices compared to earlier periods and contemporary sites. Some evidence of recycling is present among the spiral tubes, suggesting that they originated from different raw material sources, possibly removed from obsolete clothing. Alternatively, this could indicate a varying quality of imported copperalloy, including wire, along the Hansa trade routes.
Bayley, J. & Butcher, S. 2004. Roman Brooches in Britain: A Technological and Typological Study Based on the Richborough Collection. Society of Antiquaries of London, London.
https://doi.org/10.26530/20.500.12657/50365
Bliujienė, A. 2013. Romėniškasis ir tautų kraustymosi laikotarpiai. (Lietuvos archeologija, III.) Klaipėdos universiteto leidykla.
Chiavari, C., Rahmouni, K., Takenouti, H., Joiret, S., Vermaut, P., Robbiola, L. 2007. Composition and electrochemical properties of natural patinas of outdoor bronze monuments. – Electrochimica Acta, 52: 27, 7760–7769.
https://doi.org/10.1016/j.electacta.2006.12.053
Craddock, P. T. 1978. The composition of the copper alloys used by the Greek, Etruscan and Roman civilisations, 3. The origins and early use of brass. – Journal of Archaeological Science, 5: 1, 1–16.
https://doi.org/10.1016/0305-4403(78)90015-8
Dardeniz, G. 2020. Why did the use of antimony-bearing alloys in Bronze Age Anatolia fall dormant after the Early Bronze Age? A case from Resuloğlu (Çorum, Turkey). – PLOS ONE, 15: 7, 1–34.
https://doi.org/10.1371/journal.pone.0234563
Dungworth, D. 1997. Roman copper alloys: analysis of artefacts from northern Britain. – Journal of Archaeological Science, 24: 10, 901–910.
https://doi.org/10.1006/jasc.1996.0169
Ferretti, M. 2014. The investigation of ancient metal artefacts by portable X-ray fluorescence devices. – Journal of Analytical Atomic Spectrometry, 29: 10, 1753–1766.
https://doi.org/10.1039/c4ja00107a
Giumlia-Mair, A. 2020. Plating and surface treatments on ancient metalwork. – Advances in Archaeomaterials, 1: 1, 1–26.
https://doi.org/10.1016/j.aia.2020.10.001
Göbel, F. 1842. Ueber den Einfluss der Chemie auf die Ermittelung der Völker der Vorzeit, oder, Resultate der chemischen Untersuchung metallischer Alterthümer insbesondere der in den Ostseegouvernements vorkommenden, Behufs der Ermittelung der Völker, von welchen sie abstammen. Ferdinand Enke, Dorpat.
Henry of Livonia. 1874. Henrici Chronicon Livoniae. Impensis bibliopolii Hahniani, Hannoverae.
Huisman, H., Ackermann, R., Claes, L., Eijck, L. van, Groot, T. de, Joosten, I., Kemmers, K., Kerkhoven, N., Kort, J.-W. de, Russo, S. L., Ngan-Tillard, D., Os, B. van, Peter, M., Pümpin, C., Vaars, J., Zhou, Z. 2023. Change lost: corrosion of Roman copper alloy coins in changing and variable burial environments. – Journal of Archaeological Science: Reports, 47, 103799.
https://doi.org/10.1016/j.jasrep.2022.103799
Jahnke, C. 2010. De Hanze en de Europese economie in de middeleeuwen. – Koggen, kooplieden en kantoren: de Hanze, een praktisch netwerk. Eds H. Brand & E. Knol. Uitgeverij Verloren, Hilversum, 44–61.
Kearns, T., Martinón-Torres, M. & Rehren, T. 2010. Metal to mould: alloy identification in experimental casting moulds using XRF. – Historical Metallurgy, 44: 1, 48–58.
Kienlin, T. L., Bischoff, E. & Opielka, H. 2006. Copper and bronze during the Eneolithic and Early Bronze Age: a metallographic examination of axes from the Northalphine region.
– Archaeometry, 48: 3, 453–468.
https://doi/10.1111/j.1475-4754.2006.00266.x
Kouzelis, A. 2020. Hanseatic League: History & Civilization. Kulturlandskapet, Gothenburg.
Kuipers, J. J. B. 2019. De Hanze: kooplui, koningen, steden en staten. Walburg Pers, Zutphen.
Lang, V. 2007. The Bronze and Early Iron Ages in Estonia. (Estonian Archaeology, 3.) University of Tartu Press, Tartu.
https://doi.org/10.26530/OAPEN_423939
Lang, V. & Laneman, M. 2006. Archaeological Research in Estonia 1865–2005. (Estonian Archaeology, 1.) University of Tartu Press, Tartu.
https://doi.org/10.26530/OAPEN_423937
Laul, S. & Tamla, Ü. 2014. Peitleid Lõhavere linnamäelt. Käsitöö- ja ehtevakk 13. sajandi algusest. (Õpetatud Eesti Seltsi kirjad, 10.) Tartu Ülikooli arheoloogia osakond, Tallinna Ülikooli Ajaloo Instituut, Õpetatud Eesti Selts.
Lillak, M. & Roxburgh, M. A. 2021. Head-shield brooches of the Roman Iron Age from the tarand cemeteries of the eastern Baltic. – Archaeologia Baltica, 28, 63–80.
https://doi.org/10.15181/ab.v28i0.2282
Mägi, M. 2002. At the Crossroads of Space and Time. Graves, Changing Society and Ideology on Saaremaa (Ösel), 9th–13th centuries AD. (CCC Papers, 6.) Institute of History, Tallinn.
Martinón-Torres, M., Lee, X. J., Bevan, A., Xia, Y., Zhao, K. & Rehren, T. 2012. Forty thousand arms for a single emperor: from chemical data to the labor organization behind the bronze arrows of the Terracotta Army. – Journal of Archaeological Method and Theory, 21: 3, 534–562.
https://doi.org/10.1007/s10816-012-9158-z
Meeks, N. D. 1986. Tin-rich surfaces on bronze – some experimental and archaeological considerations. – Archaeometry, 28: 2, 133–162.
https://doi.org/10.1111/j.1475-4754.1986.tb00383.x
Morton, V. 2019. Experiment and emergence. – Brass from the Past: Brass Made, Used and Traded from Prehistoric Times to 1800. Archaeopress, Oxford, 1–27.
https://doi.org/10.2307/j.ctvndv4z0.3
Oddy, W. A. 1980. Gilding and tinning in Anglo-Saxon England. – Aspects of Early Metallurgy. (British Museum Occasional Paper, 17.) British Museum, London, 129–134.
Olli, M. & Roxburgh, M. 2018. Disc brooches of the Roman Iron Age from the tarand cemeteries of Estonia and north Latvia. – Lietuvos Archeologija, 44, 39–70.
Orfanou, V. & Rehren, T. 2015. A (not so) dangerous method: pXRF vs. EPMA-WDS analyses of copper-based artefacts. – Archaeological and Anthropological Sciences, 7, 387–397.
https://doi.org/10.1007/s12520-014-0198-z
Os, B. van 2012. De productie van zink en messing. – Het domein van de boer en de ambachtsman. Een opgraving op het terrein van de voormalige fruitveiling te Wijk bij Duurstede: een deel van Dorestad en villa Wijk archaeologisch onderzocht. Ed. J. Dijkstra. (ADC Monografie, 12.) ADC ArcheoProjecten, Amersfoort, 406–410.
Pollard, A. M. & Heron, C. 2008. Archaeological chemistry. – Chemical and Engineering News. RSC Publishing, 193–234.
Pollard, A. M., Bray, P., Gosden, C., Wilson, A. & Hamerow, H. 2015. Characterising copper-based metals in Britain in the first millennium AD: a preliminary quantification of metal flow and recycling. – Antiquity, 89: 345, 697–713.
https://doi.org/10.15184/aqy.2015.20
Radivojević, M., Roberts, B. W., Pernicka, E., Stos-Gale, Z., Martinón-Torres, M., Rehren, T., Bray, P., Brandherm, D., Ling, J., Mei, J., Vandkilde, H., Kristiansen, K., Shennan, S. J. & Broodbank, C. 2018. The provenance, use, and circulation of metals in the European Bronze Age: the state of debate. – Journal of Archaeological Research, 27, 131–185.
https://doi.org/10.1007/s10814-018-9123-9
Rammo, R. & Ratas, J. 2018. An early 13th century craft box from Lõhavere in Estonia and its owner. – Fasciculi Archaeologiae Historicae, 31, 135–144.
https://doi.org/10.23858/fah31.2018.011
Rammo, R. & Ratas, J. 2016. Spiral tube decorations : a thousand years of tradition. EXARC, 2, 2–5.
Rehren, T., Lietz, E., Hauptmann, A. & Deutmann, K. H. 1993. Schlacken und Tiegel aus dem Adlerturm in Dortmund: Zeugen einer mittelalterlichen Messingproduktion. – Montanarchäologie in Europa: Berichte zum Internationalen Kolloquium “Frühe Erzgewinnung und Verhüttung in Europa”. Eds H. Steuer & U. Zimmermann. (Archäologie und Geschichte: Freiburger Forschungen zum ersten Jahrtausend in Südwestdeutschland, 4.) Freiburg, 4–7 October 1990, Thorbecke, Ostfildern, 303–314.
Robbiola, L., Blengino, J.-M. & Fiaud, C. 1998. Morphology and mechanisms of formation of natural patinas on archaeological Cu–Sn alloys. – Corrosion Science, 40: 12, 2083–2111.
https://doi.org/10.1016/S0010-938X(98)00096-1
Roxburgh, M. A. 2023. A ‘Roman Brass’ Age: a transformation in copper-alloy composition in Estonia and northern Latvia during the Roman Iron Age, identified by pXRF. – Estonian Journal of Archaeology, 27: 1, 3–29.
https://doi.org/10.3176/arch.2023.1.01
Roxburgh, M. A., Heeren, S., Huisman, D. J. & Os, B. J. H. van 2019. Non-destructive survey of early Roman copper-alloy brooches using portable X-ray fluorescence spectrometry.
– Archaeometry, 61: 1, 55–69.
https://doi.org/10.1111/arcm.12414
Roxburgh, M. A. & Olli, M. 2019. Eyes to the North: a multi-element analysis of copper-alloy eye brooches in the eastern Baltic, produced during the Roman Iron Age. – Germania, 96, 209–233.
Saage, R. 2020. Metalworking Sites in Estonia during the 7th–17th Centuries. (Dissertationes Archaeologiae Universitatis Tartuensis, 10.) University of Tartu Press, Tartu.
Saage, R. & Wärmländer, S. K. T. S. 2018. Metal residues in 5th c. BCE–13th c. CE Estonian tools for non-ferrous metal casting. – Journal of Archaeological Science: Reports, 19, 35–51.
https://doi.org/10.1016/j.jasrep.2018.01.015
Scheibe, C. 2021. How to plot a ternary diagram in Excel. – Chemostratigraphy.
https://chemostratigraphy.com/how-to-plot-a-ternary-diagram-in-excel/ (last accessed 14.12.2022).
Staniaszek, B. E. P. & Northover, J. P. 1983. The properties of leaded bronze alloys. – Proceedings of the 22nd Symposium on Archaeometry. Eds A. Aspinal & S. E. Warren. University of Bradford, Bradford, 262–272.
Tvauri, A. 2012. The Migration Period, pre-Viking Age and Viking Age in Estonia. (Estonian Archaeology, 4.) University of Tartu Press, Tartu.
https://doi.org/10.26530/OAPEN_423944
Tylecote, R. F. 1986. The Prehistory of Metallurgy in the British Isles. Routledge.
Tylecote, R. F. 2002. A History of Metallurgy. 2nd ed. Maney Publishing, London.
Unglick, H. 1991. Structure, composition and technology of late Roman copper alloy artifacts from the Canadian excavations at Carthage. – Archaeomaterials, 5, 91–110.
Valk, H. 2014. The fate of Final Iron Age strongholds of Estonia. – Strongholds and Power Centres East of the Baltic Sea in the 11th–13th Centuries. A Collection of Articles in Memory of Evald Tõnisson. (Muinasaja Teadus, 24.) Eds H. Valk & V. Lang. University of Tartu, Tartu, 333–384.
