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Webster 1913 Edition

Noun.

[Gr. [GREEK][GREEK][GREEK][GREEK] of or for sealing, fr. [GREEK][GREEK][GREEK] a seal.]

The science of seals, their history, age, distinctions, etc., esp. as verifying the age and genuiness of documents.

sphragistics ‎(uncountable)

The synonym sigillography is more commonly used.

Study of seals