These very pretty Art Deco period earrings are circa 1920s. They are made from silver but are not marked sterling and are set with marcasites. They almost have a cut steel look. They measure 2 x 1/2 inches and have their original backs. The only makers marks I could find look like a stylized S with some other ones that I could not make out. The back piece which clips over the post does not snap tightly against the post so may require an adjustment or the additional use of a push back on the post when worn. No marcasites are missing and the overall condition is very good.