It depends on what kind of "lock box" it is. It also depends on what kind of locksmith you take it to. The whole "do not duplicate" thing is debatable. In most states its not against the law to duplicate keys that say "do not duplicate". Check around talk to some ALOA (Associated Locksmiths of America) certified locksmiths and see what they say. Every key is able to be duplicated it just depends on who you ask.
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