A London mercury stick barometer circa 1840, in slim architectural oak case with twin cavetto cornice and circular cistern cover to the base. Ivorine dial inscribed 'Macrae 29 Royal exchange & 34 Aldgate, London', with pair of Vernier slides operated from two arbors below the hood by a key with turned bone head. A 10.5 inch mercury thermometer mounted to the trunk, height 95 cm