More popular in the Early 19th Century than the Late 1800's, this GF, Mesh Watch Fob was more for Fancy Occasions than Everyday Utility. 

Fob was Secured by a Clip on the Pant or Waistcoat Pocket, w/ a Chain to attach to the Watch Bow. 

Made by the F&C. Company. Date unknown. Fob has a Large Floral Letter & attached Heart Pendant, w/ Initials in center of Mesh.