Discoid_Lead_Weight References
- Baastrup, Maria Panum. "Irish weights were a key Viking Age trading tool." Sciencenordic.com. September 13, 2013. Accessed April 26, 2017. http://sciencenordic.com/irish-weights-were-key-viking-age-trading-tool.
- Williams, Gareth. "BBC - History - Ancient History in depth: Viking Money." BBC News. February 17, 2011. Accessed April 26, 2017. http://www.bbc.co.uk/history/ancient/vikings/money_01.shtml.
- Foreman, Martin. Weight. Still Image, 2015. NLM-30C6FD. Portable Antiquities Scheme. https://finds.org.uk/database/artefacts/record/id/750808.