This remarkable thermometer was handmade in Germany.  It works on the principle of specific gravity.  As the room temperature rises, the density of the liquid falls, causing the weighted balls to drop as each displacement weight is reached.

Accurately measures room temper-atures from 18 to 26 degrees C.

Standing at 335 mm tall, this amaz-ing instrument will be certain to arouse curiosity and make a fine accessory to any room decor.