Need help with old suitcase lock

[bukueOner]

I found this old case under a bunch of stuff in my garage and I've got no idea where the keys would be, so can anyone tell me how i could open it? I've got no professional lock picking tools and very little experience in lock picking, so be gentle :]

[cledry]

That is a standard precut key. Any older established locksmith shop should have those hanging in their shop.