Silver Pair Cased Verge with 24 Hour Dial

A late 18^th Century verge with unusual dial in silver pair cases.  Full plate fire gilt movement with square baluster pillars.  Pierced and engraved bridge cock, pierced and engraved plate for the silver regulator disc.  Fusee and chain with worm and wheel barrel setup between the plates.  Plain three arm steel balance, blue steel spiral hairspring.  Unusual raised gilt metal dial, the card  chapter marked with two sets of Roman numerals, gilt beetle and poker hands.  Plain silver inner case, silver pendant and bow, maker's mark "WB".  In a well fitting contemporary plain silver outer case.