Accoding to the Spokesman Review, Downtown Spokane boasts nearly a dozen Historic Mailboxes and more are scattered throughout the Inland Northwest in old buildings now used as banks, business complexes and government agencies. Due to modern fire codes, and worries about people “mailing” flaming objects, mail chutes in most historic buildings have been sealed shut, even if they have lobby-level historic mailboxes still in use.
At the Empire State Building, at 901 W. Riverside Ave., letters glide down mail chutes from the floors above into the building’s historic mailbox, just as they have since the building was constructed in 1900.
You can read the rest of the Spokesman Review article Here.