A thaumatrope is an optical toy that was popular in the 19th century. A disk with a picture on each side is attached to two pieces of string. When the strings are twirled quickly between the fingers the two pictures appear to blend into one due to the persistence of vision.
When spinning, this pretty little charm spells out 'SAD GIRL'. Each charm is high polish brass plated and comes on an 18" gold plated chain. You can purchase an upgrade to a 20" chain. See separate listing.