Agares Medallion

This is a seal from the book "Lesser Key of Solomon".  According this text, the spirit Agares, is described thus

"The Second Spirit is a Duke called
Agreas, or Agares. He is under the Power of the East,
and cometh up in the form of an old fair Man, riding
upon a Crocodile, carrying a Goshawk upon his fist, and
yet mild in appearance. He maketh them to run that
stand still, and bringeth back runaways. He teaches all
Languages or Tongues presently. He hath power also
to destroy Dignities both Spiritual and Temporal, and
causeth Earthquakes. He was of the Order of Virtues.
He hath under his government 31 Legions of Spirits.
And this is his Seal or Character which thou shalt wear
as a Lamen before thee."