Adverse Weather Closure

Dumbarton Oaks will be closed Thursday, March 5, 2015, due to adverse weather conditions. Please see here for more information about visiting us.


Lead roundel with a channel; receives the imprint of the boulloterion's dies.
Boulloterion (plural: boulloteria)
The pliers-shaped instrument with which the Byzantines struck the lead blank disks in order to imprint the seal.
A hollow channel that went through the blank lead disks; a cord was threaded through it before the blank was struck with the boulloterion.
A round or oval frame containing the picture of Christ, represented on the breast of some types of the Mother of God.
Term used her to indicate an actual administrative position.
The usual abbreviated form of names of a holy person such as Christ or the Mother of God.
Term used here to indicate a lifelong honorific title, which the Byzantines called ἀξία διὰ βαρβείου.

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