The Key to the City is a large, ornate brass key with intricate Art Deco engravings, featuring geometric patterns and floral motifs. Its handle is designed with a symmetrical, angular shape, reminiscent of the era's architecture, while the shaft is long and slightly tapered, ending in a complex, mechanical-looking bit that suggests its steampunk origins. The surface has a polished, reflective finish with slight weathering to indicate age and use, and the edges are accented with a darker patina to highlight the detailed craftsmanship.