Gaap Coin

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

"The Thirty-third Spirit is Gaap. He is
a Great President and a Mighty Prince. He appeareth
when the Sun is in some of the Southern Signs, in a
Human Shape, going before Four Great and Mighty
Kings, as if he were a Guide to conduct them along on
their way. His Office is to make men Insensible or
Ignorant; as also in Philosophy to make them Knowing,
and in all the Liberal Sciences^ He can cause Love or
Hatred, also he can teach thee to consecrate those things
that belong to the Dominion of Amaymon his King. He
can deliver Familiars out of the Custody of other
Magicians, and answereth truly and perfectly of things
Past, Present, and to Come. He can carry and re-carry
men very speedily from one Kingdom to another, at the
Will and Pleasure of the Exorcist. He ruleth over 66
Legions of Spirits, and he was of the Order of Potentates.
His Seal is this to be made and to be worn as
aforesaid, etc"