Actually, I'd forgotten until it happened to me again just now that there's the Sharran crossbow in the locked chest in Grymforge that just looks like a Light Crossbow +1 until you pick it up at which point you get a History check and, if successful, there's a comment about it being Sharran in origin and the weapon info sheet updates. I do ike that, and if it were introduced for additional items where it would make sense then I'd be all for it!
It's not Identify, but it gives some of the benefits.
