Something as unique as that is not likely to see the light of day again. The person that stole it knows that is like taking the Mona Lisa, it is very unique and not a dime a dozen. It will likely be sold off to a friend for the same reason you got it for your boy. Only if it hits the open non face to face transfer states will you likely ever see it again.
Make sure you have the SN, and get a copy of the entry if possible, I have seen numbers just fat fingered. That will go out nation wide and if it hits anyplace that needs to run it to sell it, it will get flagged.
I will also say if you have anything that does not have a SN#, pre 1968 rimfire, remove a butt plate or heal plate, fore arm and put some form of ID in there, business card, tape with your info in there. If you shoot it a bit check it from time to time.