一套5座機芯模型
德國，
175 x 1000 mm
五座重力走動的大型黃銅機芯模型: 包括十八世紀Graham設計的擒縱，附擺輪早期冠輪擒縱，擒縱叉鉤式擒縱，十字交叉敲擊擒縱及鐘擺的早期冠輪擒縱，這是Wuppertal鐘錶博物館的特別展覽品
A collection of 5 escapement models
German, 175 x 1000 mm
Five large weight driven escapement models made of brass: Graham escapement, verge escapement with balance, anchor escapement, cross-beat escapement, verge escapement with pendulum - custom-made piece of the Watch Museum Wuppertal
#43670