The key on the left is an antique Swedish key and the engraving is in Elder Futhark. The words are English written phonetically in the Runic alphabet. The shaft reads "timekeepers" and the haft reads "mysterious"

The key on the right is has no particular history that I know of. The engraving is cuneiform. As above, English word is transcribed phonetically. The shaft reads "Timekeepers," while symbol in the haft is stylized sun, representing Mithras, the primary god in the Achaemenid Empire.