A Victorian 'castle-top' card case

A Victorian 'castle-top' card case, Windsor Castle,

by Nathaniel Mills, Birmingham 1845,

the front with a full scene of Windsor Castle within foliate scroll decoration, on a matted background, the reverse with a scroll cartouche, inscribed 'To H. Arnot from her Sincere friend W.C. Smith, London, 3rd April 1846', length 10cm, approx. weight 2.3oz.