A rare late 18th century carved and pierced bone alcohol thermometer, mounted with a later glazed giltwood display frame Probably French or Flemish The glass tube set on a rectangular backplate, the scales to either side marked in Fahrenheit and Celsius and surmounted by an oval portrait of a lady within a ribbon tied floral garlanded and trailing frame above a pagoda gazebo enclosing a single male figure, the sides with twin floral garland entwined reeded columns supporting pedestal classical urns surmounted by vertical formalised floral arrangements, on trellis decorated rectangular plinths, the whole mounted on a later pale blue silk ground and set within a ribbon tied moulded gilt arched rectangular frame, and later mounted with red plush lined rectangular gilt display case, the rear paper lining indistinctly marked in pen COLLECTION HER MAJESTY QUEEEN MARY and further numbered -1-223, 29cm high, 13.5cm wide, 4cm deep approximately For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing