Architectural Mailboxes Maison is a timeless architectural design appealing to even the most discerning homeowner. Not only is this mailbox design elegant with its cast aluminum and galvanized steel construction, but it is also durable with a heavy powder coat finish. The Maison can accept a USPS priority mail envelope, as well as mail bundles and magazines. The mailbox is equipped with a large mail compartment, stainless steel cam lock with two keys and is pre-drilled for easy installation.