Diebold Canton OH Vault Door: Does anyone know what it's worth

My family owns an old bank and are in the process of selling the building. We have a Diebold Canton OH Vault Door from the late 1800's/early 1900's hanging and want to know what it is worth? Also if there is anyone interested in buying it, please email me and I can send you pictures of this amazing piece of history. Thanks. Michelangelo Lobato skapegoat99@hotmail.com