Check the listing for details. Vintage Brass Post Office Box Door #5555 with Combination Lock, 1961.. Color: Brass, Made in United States. Listed at 8.99 USD. This vintage, patinated, brass post office box door with a combination lock from 1961, is an original nostalgic piece that was made by the American Device Company in the United States. Made of brass, it exudes quality craftsmanship and historical charm. Perfect for collectors or those looking to add a touch of nostalgia to their home or office, this piece is sure to be a unique conversation starter. Its durable construction and original design make it a valuable antique piece for any United States history enthusiast. It can be repurposed into a bank by attaching a box to the back because the frame and hinges are included and are in working order. Instructions for changing the combination are readily available on the internet. Shipped unlocked.