Small Round Vintage Silver Pendant of Lady Holding Cut Stemmed Flower

Small metal pendant of lady in button up long sleeve dress holding the stem of a large cut flower in her left hand. 

Darkened with age, have never tried to polish or clean

No idea on type of metal, my guess is silver.  Not magnetic

Measures approximately 5/8 or .625 inches in diameter

No maker markings that I could find, so no idea on age or origin

If you know anything about this pretty little lady please let me know, I'd love to learn more about her!  She was found in a jewelry box with some 1950-1970 vintage costume jewelry, so I'm guessing she's from around the same time.