Barbatos Medallion

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

"The Eighth Spirit is Barbatos. He
is a Great Duke, and appeareth when the Sun is in Sagit-
tary, with four noble Kings and their companies of
great troops. He giveth understanding of the singing
of Birds, and of the Voices of other creatures, such as
the barking of Dogs. He breaketh the Hidden Treasures
open that have been laid by the Enchantments of
Magicians. He is of the Order of Virtues, of which some
part he retaineth still; and he knoweth all things Past,
and to come, and conciliateth Friends and those that be
in Power. He ruleth over 30 Legions of Spirits. His
Seal of Obedience is this, the which wear before thee as
aforesaid."