Flight Barr and Barr saucer or stand painted with a crest and the motto made for  Sophia, daughter of the Earl of Coventry and her husband Sir Roger Gresley, Bart,  on the occasion of their wedding c. 1830
for a similar cup and saucer  CF. https://www.bonhams.com/auctions/11284/lot/364/ 
Diameter: 6.25 ins.  
Condition:  small area of re-gilding to rim on the reverse 
Mark: impressed and circular mark in puce with lion and unicorn
Price £550
Enquire about: FBB Sophia saucer lb34156