Vintage Patinated Copper Diving Bell Seed Chamber

Shape the main body by curving copper sheet metal into a conical sphere and securing it with decorative brass rivets. Ensure the bottom opening is wide enough to attach a circular seed tray that captures overflow.

Fabricate the viewing ports using thick glass discs set into brass frames that are soldered directly onto the copper shell. These portals provide an immersive look at the birds as they congregate inside the feeding area.

Apply a chemical patina treatment to the copper to achieve an aged, verdigris finish that mimics years of exposure to salt water. Seal the metal with a clear outdoor-grade wax to protect the finish while maintaining the weathered aesthetic.

Mount the assembly using a heavy-duty weathered iron chain attached to a top-mounted shackle for a secure, industrial look. Install a roof cap with an internal seed hopper that gravity-feeds the lower tray through the center of the diving bell.