A Double Sided Gold Filled Victorian 1880's Bookchain with Huge Clasp to Add Pendant Charms

A great example of a 1880's Victorian gold filled bookchain necklace. This piece has decrotive links on both sides.  The color is a slight rose gold and retains the original large c-clasp.  14 3/4" length, claps is 11/16" diameter, the links are 7/16" wide.  

Overall it in very good antique condition.  Some slight darkening to a few areas but nothing unexpected for a piece 140 years old.  Clasp in good working order.