Seal of the Lords
Commander Adama normally wears a peculiar medallion with his commander's robes.
He explains to Colonel Tigh that the medallion is a symbol of the Colonial faith as well as a symbol of power. The medallions are passed to members of the Quorum of Twelve.
On Kobol, in search of answers to the whereabouts of Earth, Commander Adama uses the medallion as a key that opens the tomb of the Ninth Lord of Kobol (Lost Planet of the Gods, Part II).
Notes
Adama's medallion is analogous to the Arrow of Apollo in the Re-imagined Series story arc. As in "Lost Planet of the Gods," the new series' characters also search for the way to Earth by accessing another ancient tomb of a Lord of Kobol, where the Arrow is the key to the data in the episode, "Home, Part II."
The prop of Adama's medallion appeared later in the television series Buck Rogers in the 25th Century as the amulet to stop the Vorvon in the episode Space Vampire.