Antique Henri Chatelain Calculigraphe Circular Slide Rule - Pocket Watch Shape for Sale

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Antique Henri Chatelain Calculigraphe Circular Slide Rule - Pocket Watch Shape For Sale

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Antique Henri Chatelain Calculigraphe Circular Slide Rule - Pocket Watch Shape:
$199.99

Please see full description for details. a.imagelink {color:#0000FF;} a:hover.imagelink {color:#0000FF;} a:visited.imagelink {color:#800080;} a.imagelink img.saleimage { border: 2px solid #0000FF; } a:visited.imagelink img.saleimage { border: 2px solid #800080; } Antique Henri Chatelain Calculigraphe Circular Slide Rule - Pocket Watch Shape

Estate fresh antique figural pocket watch shaped circular slide rule by Henri Chatelain.
Double sided with dials and hands on both sides.
Crown rotates dial on one side. With button pushed in, crown rotates hands on both sides.
Measures 2.08\" in diameter (Excluding stem and crown)
Dial marked \"CALCULIGRAPHE\" with \"H C\" makers mark for Henri Chatelain.
Fresh out of a high-end antique science & engineering collection. Very good as-found antique condition with light evidence of age and use. Appears fully functional with working crown and button. Case and bale ring show light oxidation and plating loss. Some light brown patina on dials around screws. Displays nicely. Sold as-is / as-found.

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