Weathered Nautical Sextant Navigation Seed Vessel

Construct the main triangular frame using mahogany or teak to mimic the durability of ship deck materials. Angle the primary structural supports to match the precise geometry of a classic navigational instrument.

Fabricate a central pivoting radius arm that functions as the primary support for the hopper. Use a brass locking pin to secure the arm, allowing for periodic adjustment of the seed flow.

Install a clear acrylic cylinder within the geometric center of the frame to act as the moisture-resistant seed reservoir. Cap the top with a flared brass housing to keep the food dry and accessible to birds.

Apply a marine-grade spar varnish to protect the wood from harsh outdoor exposure. Add small brass etchings along the main arc to replicate the navigational degree markers found on authentic maritime tools.