A container or case used to store and protect ancient seals, gems, or impressions made by finger rings.
From Greek daktylos (finger) + theke (case/container). This museum term describes specialized storage boxes used to preserve precious finger-ring impressions and signet seals.
Ancient Romans had personalized finger rings that left seal impressions in wax—museums needed special boxes to keep these tiny, fragile impressions safe, which is exactly what dactyliotheca means.
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