Very unusual and peculiar 10k yellow gold thermometer charm. The thermometer even works! 

ID#: CHA277

Metal: 10k yellow gold 

Material: Glass

Weight: 2.60g

Dimensions: 1.38 inches (L) including bail x 0.38 inch (W) x 0.18 mm (D)

Markings: 'HAKC', '10k'