These are gorgeous c. 1920s sterling Deco-style screwback earrings by Fishel Nessler. The earrings feature a six-sided faceted black rhinestone flanked by tiny chaton-cut rhinestones. These

rare earrings are marked  Silverite, Sterling, and FN & Co. Fishel, Nessler & Co. was founded New York, New York in 1885. In 1910, the company was forced into bankruptcy. The accounting of said action in an interesting read in WWD. In 1935, the company celebrated its Golden Jubilee. Beyond that date, no further mention of the company’s history is noted.