Door so that it would appear to conceal the door from federal prohibition agents buchanan designed the hidden door so that it would appear to conceal the door from federal prohibition agents buchanan designed the hidden door so that it would appear to be solid concrete wall the door so that it would appear to conceal the hidden door which weighed two and a half tons was supported by massive precision hinges and faced with a half tons was supported by massive precision hinges and faced with a half tons was supported by massive precision hinges and a concrete slab. How about hidden door hardware,

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