The Keystone Signature Series Mailboxes by Gaines Manufacturing Gaines manufacturing offers high quality products combined with unmistakable character with the Signature Keystone Series Mailboxes. Featuring stunning, raised sold brass US Mail letters, these decorative yet durable aluminum mailboxes add style and beauty to every curbside. Each elegant letter casts a soft shadow across the mailbox door which adds a unique and eye catching appearance. All the Keystone Mailbox Collections are die cast from aerospace-grade, rust-proof aluminum. They are finished with a highly protective state-of-the-art five step powder coated paint process, which offers a durable and high-quality finish. The paint itself contains ultraviolet (UV) ray inhibitors to protect the surface making it resistant to chipping, scratching, fading, and wearing. Personalize your curbside residential mailbox with the complete Keystone Series Package with a choice of the Standard Post or Keystone Deluxe Post in all the optional finishes and accent lettering to compliment the architecture and color of your home. Mailbox Measures 12 ?” H x 10 3/8” W x 20 1/8” D