Mahogany case No. 47
Engraved navigation plate
Astra Mare Celestial instrument almanac
Altitude corrections
Sidereal register
Brass arc / velvet ground

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Starlight

A lamplit system of engraved rules, radial verniers, and star-table columns for fixing position in the dark.

MaterialPatinated brass over near-black mahogany
MeasureHairline ticks, every fifth degree held brighter
VoiceOld-style serif, exacting and warm
Graduated altitude chamber

Every ruled edge sits like a fitted instrument in its case.

Sextant plate
15 30 45 60 75 VERNIER
1730sreflecting quadrant
1.5 pxengraved stroke
4 pxcase rhythm
Near blackvelvet recess
This is the Sextant Navigation design system, applied by Curio Design — a design-style library for AI agents. Full Sextant Navigation guide → designbycurio.com/learn/celestial-navigation-sextant