Centennial Extra Large Capacity Post Mount Parcel Mailbox in Black with Premium Silver Handle and FlagThe Centennial Mailbox by Architectural Mailboxes is the first design to receive United States Postal Service approval against the new USPS Standard 7C regulation, released in late 2015. Named Centennial, it represents the next generation of mailbox size, since the last traditional size was introduced over 100 years ago in 1915. Meeting the needs of today's consumer, its ample mailbox compartment is designed to receive not only mail and magazines but