| A late 19th Century American lever in a patented silver weatherproof case. Full plate gilt keyless going barrel movement. Engraved cock with garnet endstone, polished steel regulator, silver sector index on the plate. Compensation balance with blue steel spiral hairspring. Club foot
lever escapement. Signed white enamel dial with subsidiary seconds, Roman numerals, blue steel hands. Substantial silver open face single bodied case with screw bezel and screw down crown for protection from dust and moisture. The movement hinging from the case only when the crown is released unscrewing clockwise. Decoratively engraved back, vacant shield shaped cartouche, maker's mark "A.W.Co" in a rectangle and
"Pat'd Apr. 22 1879".
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