Brass Demonstration Gyroscope by Griffin, London, the turned base with maker's name and origin engraved supports a yoke and gimbal with solid revolving wheel and counterbalance, ht. 8 1/2 in
Brass Demonstration Gyroscope by Griffin, London, the turned base with maker's name and origin engraved supports a yoke and gimbal with solid revolving wheel and counterbalance, ht. 8 1/2 in.