This small, delightful enamelled pin was designed by Alice Caviness. It has sparkling marcasite accents on the tips of the feathers and pave'd on his chest.
It measures 1 1/8" x 1 1/8" and is signed Sterling, Germany, M-B on the reverse. It is commonly thought that M-B was (one of) the manufacturer in Germany who produced the Caviness pieces in the 40's.
It is in excellent condition. Please search my site to see the many other pieces of this type currently available.
The last photo shows a page out of an Alice Caviness catalog and on the upper left you can see this pin illustrated.