Wooden pillar with turned cap to which a string was once attached. "37" punched on top of cap; this refers to projected length of gnomon. Folding iron gnomon. Printed paper scales pasted to cylinder. French instructions for use on the dial are printed on the cardboard tubular case.
Matériel
"A PARIS. HENRY ROBERT, HORLOGER, AU PALAIS-ROYAL, No. 164." on instrument.; "Henry ROBERT, / Horloger, / Palais Royal, No. 164 / Au 1er. / A PARIS. " on case
