Before revision: upright=1.3|19th-century drawings of the seal of Richard de Clare ("Strongbow"), Earl of Pembroke (1130–1176) Letters sealed with wax in a painting by Cornelis Norbertus Gysbrechts, 1675 Sigillography, also known by its Greek-derived name, sphragistics, is the scholarly discipline that studies the wax, lead, clay, and other seals used to authenticate archival documents.
After revision: upright=1.3|19th-century drawings of the seal of Richard de Clare ("Strongbow"), Earl of Pembroke (1130–1176) Sigillography, also known by its Greek-derived name, sphragistics, is the scholarly discipline that studies the wax, lead, clay, and other seals used to authenticate archival documents.