Beautiful vintage Sarah Coventry bird in flight brooch

This beautiful Sarah Coventry bird in flight brooch could be identified by one of two names. The brooch named Swedish Modern was part of Sarah Coventry's 1967 teen line. It was also presented and named Mr. Sea Gull in the 1974 line. The brooches are identical and can only be dated by the original packaging. The brooch measure approximately 2" x 2¼" and is marked