This is a seal from the book "Lesser Key of Solomon". According this text, the spirit Glasya-Labolas, is described thus
"The Twenty-fifth Spirit is
Glasya-Labolas. He is a Mighty President and Earl,
and showeth himself in the form of a Dog with Wings
like a Gryphon. He teacheth all Arts and Sciences in an
instant, and is an Author of Bloodshed and Manslaughter.
He teacheth all things Past, and to Come. If desired
he causeth the love both of Friends and of Foes.
He can make a Man to go Invisible. And he hath under
his command 36 Legions of Spirits. His Seal is this, to