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Silver’s tendency to tarnish means that Thracian silver vessels required ongoing maintenance. The owners would have needed to polish them regularly, removing the dark patina that accumulated from exposure to sulfur compounds in air. This maintenance was labor-intensive, perhaps performed by servants or specialized cleaners who understood how to polish silver without damaging the repoussé work.
The polishing process itself became ritual in some contexts—the restoration of brightness was renewal, the removal of darkness was purification. Annual or seasonal silver-cleaning might have coincided with other renewal ceremonies, the material maintenance aligning with spiritual refreshment.
Some pieces were deliberately buried or offered, placed in contexts where they would not be maintained. The tarnishing that resulted was accepted as natural consequence of offering. The dark silver found in hoards was not failure of preservation but evidence that these pieces had been removed from active use, given to earth or to gods rather than remaining in human possession.
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