apollo. (2026). Lead isotope ratios of the Nebra hoard (Freiberg 2003, Mannheim 2007) (Version 1.0) [Data set]. Mysteries Department. https://mysteriesdept.com/datasets/DAT0D2SBGXE2FVH/lead-isotope-ratios-of-the-nebra-hoard-freiberg-2003