These are identification markers affixed to residences, typically showcasing the street address. They combine a specific color with a durable material formed through high-temperature firing. An example would be a set of numerals in a vivid azure hue, crafted from hardened clay, used to clearly label a dwelling.
The use of such items provides immediate clarity for visitors, delivery personnel, and emergency services. Their visibility aids navigation, especially during urgent situations. Historically, ceramic components offer resistance to weathering and fading, ensuring legibility over extended periods. The distinctive coloration provides an aesthetic enhancement, contributing to the overall curb appeal of the property.