When news broke of Herbert Axelrod’s shady financial dealings, the New Jersey Symphony Orchestra could have been excused for panicking. After all, this alleged criminal had just sold them $18 million worth of supposedly priceless instruments. But NJSO officials say that regardless of Axelrod’s behavior in other areas, the deal that brought the orchestra its collection of Strads, Guarneris, and Amatis was on the up-and-up, and they’ve got the papers to prove it.