Elgin Nat'l Watch Co., A display of the stages of watch manufacture in a hexagonal display cabinet, circa 1868-1872

the first side with the manufacturing stages of a white enamel dial, the second of plates and bridges, the third of spring, barrels, wheel train, escapements, regulators and hands, the forth of screws, springs and regulators, the fifth side with the manufacturing stages of pivots, pinions and barrels, the sixth side with the manufacturing stages of escape wheels, jewels and levers, accompanied by a copy of Hoke, The Time Museum Catalogue of American Pocket Watches. 

Time Museum Inventory No. 2636