Here's a noteworthy vault door I have added to my "catalog." This is in Providence, Rhode Island. The former home of the Industrial Trust Company (1927/1928), then Bank of America until earlier this year, the building is now vacant which makes viewing difficult at best assuming it's locked up tight while awaiting its future. I did find an image of a vault door presumably for safe deposit boxes and was astounded by its apparent thickness.

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I am presuming this is a York door based on the frame-mounted controls that look like other York (and Remington-Sherman, which was acquired by York) doors. The building is at 111 Westminster Street and is nicknamed the "Superman Building" because it looks like the Daily Planet building in the old TV show (which was really the Los Angeles city hall). This image is from http://www.providencejournal.com/top...?ssimg=1024003.