Elegant turn-of-the-century gold top cufflinks are oval with initials engraved in the center in ornate script that appear to read as "WMB".  A decorative pattern outlines the initials in a larger oval boarder.  These cufflinks have a rigid bar ending in a kidney shaped backing that is circa 1890-1910 and has the makers mark stamped on the shank reading "FBS".  They are gold topped with 10 karat gold and measure 3/4" tall by 1/2" wide