Georg Jensen Sterling Silver Large Bird Brooch No. 70 by Kristian Mohl-Hansen. 

Brooch is in excellent vintage condition with a tubular sliding clasp. 

Beautifully designed by Kristian Mohl-Hansen. 

A similar example can be found on p. 37 in the book, "Georg Jensen Jewelry" edited by David A. Taylor.

Designer: Kristian Mohl-Hansen
Maker: Georg Jensen
Design #: 70
Circa: 1933-44
Dimensions: 2.25"
Country of Origin: Denmark