Made in the USA by the original BOYCE Motometer Co. Polished Brass, weighs just over 3/4 Pound. Head diameter is 3-3/8″, and 5-1/2″ Tall. Says CASE in the bold script on the one side, & a working Thermometer on the other. These mount the same way the original Motometers were mounted. Drill a 5/8″ hole is the Radiator Cap & drop it through & draw it tight with the Brass nut supplied. These would also make a great Desk Ornament.