Octagonally shaped. Arabic numerals mark hour scales for 40°, 46°, and 52°. Roman numerals mark hour scales for 43° and 49°. Compass points labeled in French initials. Fleurs-de-lis at north. Blued needle, type 10, on brass pivot. Brass bird's-eye rivet.
Matériel
"Butterfield AParis"; "Premier Cadran" inscribed on compass box.
