Portugal spun silver large butterfly sterling silver vintage pendant necklace. Great vintage condition with little signs of wear. Butterfly antennae were attached at a slight angle as seen in pictures.  Stamped on the back of the pendant. Newer adjustable sterling silver chain has been added. 

Acid tests positive for sterling silver. 

Necklace measures adjustable 18 to 20 inches in length

Pendant measures 1 and 3/4ths of an inch wide and 1 and 1/8th of an inch tall with a 1/4 inch bail.