First we would need to ensure the owner or ex owner had no family,if they did it goes to them.
If not then I'd need to ask the contractor if they wanted it,if not Then if my boss never wanted it I'd need to ask could I have it and I'd need paper from him saying so.
Then it's the police to inform them then they check with the boss then they keep it for 3 to 6 months to see if anyone claims it.
If after that no one came,I need to convince them why I'd like it,if they are ok with that I fill in paperwork and get invited to the next nihonto appraisal meeting to be told genuine or not.
If the police say no,probably one of them would keep it or it would be put in a box somewhere.
Seems like a lot of work and time and it would be sad if they said no.
Small things are ok,something like like that is different altogether I think.