Profile: Auth-Florence Mfg. is a producer of quality mailboxes and accessories. Our products include cluster box units, mailbox suites, mail shelter kits, vertical mailboxes, parcel lockers, key keepers and collection boxes. Our parcel lockers are front loaded and are available in 4 or 5 door unitsā_™ standard. Our mailboxes are constructed of heavy gauge aluminum and 300 series stainless steel components for superior strength, corrosion resistance & exceptional outdoor durability.