City of London Lord Mayor and Sheriffs Committee: a rare member's badge

City of London Lord Mayor and Sheriffs Committee: a rare member's badge, engraved silver-gilt, 52mm, city and personal arms (M. GIBBS 1828), rev. (The Right Honourable William Thompson MP Lord Mayor, Felix Booth Esqr, and Wm Taylor Copeland Esqr. Sheriffs), ornate border and suspension loop, Charles Rawlings London 1828, in a pear shaped leather case, some wear to engraving otherwise extremely fine or nearly so.