A friend stopped by yesterday with a crippled Capegun, the stock broken off behind the backaction locks. It has double under bolts and Dollshead, top lever openng, the forend is attached to the reciever, the barrels come off by moving a lever at the front of the forend. The only identifing stampings are a string of numbers under the rifle barrel that is chambered for 8x58R Sauer (fluid steel), the shotgun barrel is Damascus bored 16ga.

Any ideas to its linage?